ライフサイエンスコーパス: primary amine

1 he form of formamide (or urea in the case of primary amine).

2 fer of the acetyl group from acetyl-CoA to a primary amine.

3 analogue with C.35 hydroxyl instead of C.35 primary amine.

4 se (SSAO) catalyses oxidative deamination of primary amines.

5 e of, respectively, 2, 4, 8, and 72 equiv of primary amines.

6 enable to a variety of D-A cyclopropanes and primary amines.

7 dary amines approximately tertiary amines >> primary amines.

8 ere comparable to absorber rates for several primary amines.

9 um borohydride to reduce the nitro-groups to primary amines.

10 mulation rates in washwaters were lowest for primary amines.

11 10(8) M(-1) s(-1)), yielding ketimines, with primary amines.

12 acid permits visualization of enantiomers of primary amines.

13 (carboxylated bPEI) via carboxylation of the primary amines.

14 d but polar, hydrophobic, and variably sized primary amines.

15 as observed with both aromatic and aliphatic primary amines.

16 otodegradable monomer that can be coupled to primary amines.

17 n degree baseline separate all tested chiral primary amines.

18 id-phase synthesis starting from immobilized primary amines.

19 l of this nucleophile for the preparation of primary amines.

20 for the formation of amides from esters and primary amines.

21 ith phosphine oxide molecules than that with primary amines.

22 othiophenium ylide followed by coupling with primary amines.

23 that catalyses the oxidative deamination of primary amines.

24 e of homocysteine (Hcys) that can react with primary amines.

25 n of unactivated aliphatic C-H bonds in free primary amines.

26 ,4-b]indole-3-carboxylate, formaldehyde, and primary amines.

27 us Co-catalyzed hydrogenation of nitriles to primary amines.

28 ry hindered alpha,alpha,alpha-trisubstituted primary amines.

29 he presence of air for oxidative coupling of primary amines.

30 econdary aminopentene cyclizations require a primary amine (1-2 equiv vs catalyst).

31 secondary amine piperazine (PZ) than for the primary amines 2-amino-2-methyl-1-propanol (AMP) and mon

32 lysis of 9 and subsequent HATU coupling with primary amines 4.

33 The primary amines 6b and 7 bearing a cyclohexyl and a pheny

34 rbonyl group of the Nazarov reactant and the primary amine accepts a hydrogen bond from the hydroxyl

35 drogenation reactions in the N-alkylation of primary amines, achieving good to excellent yields under

36 and Mannich conjugate additions whereby the primary amine activates the aldehyde and the catalyst ac

37 of enaminioesters from beta-keto esters and primary amines, activation of their allylic sp(3) C-H, v

38 amine of the beta aminoalanine, whereas the primary amine acts as an axial ligand.

39 bstituted benzo[b][1,6]naphythyridines while primary amines afforded hydroamination products .

40 henethylamines containing a potentially free primary amine after appropriate deprotection have been s

41 amines or via a three-component coupling of primary amines, aldehydes and trifluoroacetic acid.

42 yl vinyl ether (secondary or tertiary) and a primary amine (aliphatic or aromatic) in toluene or meth

43 Each CysMA residue comprises a primary amine and a carboxylic acid.

44 The combination of a primary amine and a secondary amine catalyst was found t

45 a multicomponent reaction of cyclohexanone, primary amine and N-tosyl-3-nitroindole followed by an o

46 We explore how two nonionic polar groups (primary amine and primary amide) influence hydrophobic i

47 th a series of linear and methyl substituted primary amines and alkanolamines have been investigated

48 deprotonated Strecker products derived from primary amines and aromatic aldehydes with 2-halobenzyl

49 lladium-catalyzed C-N cross-coupling between primary amines and aryl halides has been developed.

50 component reaction between o-nitrochalcones, primary amines and beta-dicarbonyl compounds in the pres

51 ycles from alkyl dihalides (ditosylates) and primary amines and hydrazines via a simple and efficient

52 on of alpha-chloroketones in the presence of primary amines and isocyanates.

53 e a novel IBX-promoted oxidative coupling of primary amines and its utilization to Ugi reaction.

54 ver, these dioxabicyclic lactones react with primary amines and lysine side chains of lysozyme to for

55 t catalyze the conversion of two substrates, primary amines and molecular oxygen, to aldehydes and hy

56 Here we describe an amide formation using primary amines and potassium acyltrifluoroborates promot

57 nt protocol furnished good results with both primary amines and secondary amines and sluggish aniline

58 Titanium(IV)-mediated reactions between primary amines and secondary carboxamides exhibit differ

59 mines by the treatment of nitroepoxides with primary amines and then a reducing agent.

60 al organocatalyst that contains tertiary and primary amines and thiourea moieties to activate substra

61 luding hydroformylation, condensation with a primary amine, and a rearrangement step giving water as

62 ponent reaction of ninhydrin, malononitrile, primary amines, and dialkyl acetylenedicarboxylates unde

63 dropyrimidines from azirine-2-carbaldehydes, primary amines, and diazo carbonyl compounds under Rh(II

64 ining one set of 1,2-diaza-1,3-dienes (DDs), primary amines, and isothiocyanates in a different seque

65 more readily nitrosatable than the pristine primary amines, and that can form stable N-nitrosamines.

66 are formed in the photochemical oxidation of primary amines, and their reaction with (*)NO is an impo

67 3))-H oxidations of tertiary, secondary, and primary amine- and pyridine-containing molecules with tu

68 Aliphatic primary amines are a class of chemical feedstock essenti

69 Thus, while primary amines are confirmed to be the most effective am

70 ng available and readily prepared materials, primary amines are converted to protected N(G)-aminoguan

71 At neutrality in aqueous solution, primary amines are protonated.

72 Using cinchona alkaloid-derived primary amines as catalysts and aqueous hydrogen peroxid

73 nzylamines and heterocycles have unprotected primary amines as efficient directing groups.

74 Secondary amines featuring these reactive primary amines as functional groups (e.g., secondary N-m

75 The key steps are formation of a primary amine at a quaternary center of aniline derivati

76 the photocatalytic reaction, addition of the primary amine at room temperature or the secondary amine

77 ikely to be involved in the incorporation of primary amines at selected peptide-bound glutamine resid

78 ctivity of this catalyst for the coupling of primary amines at these loadings is made with catalysts

79 able entropic factors may be the main reason primary amine based adsorbents are more effective under

80 We report that a branched primary amine bearing an aromatization-prone moiety, eth

81 t identification in metabolism of a branched primary amine by a copper amine oxidase and suggests a n

82 for determining the enantiopurity of chiral primary amines by 1H NMR spectroscopic analysis is descr

83 rein is the construction of C-N bonds, using primary amines, by direct C-H functionalization with an

84 Primary amines can be readily doubly protected as N-subs

85 bservation of selective alcohol formation in primary amine catalysis of the Henry reaction.

86 A primary amine catalyst with a methyl-terminated outer-sp

87 the development of a highly enantioselective primary amine catalyst.

88 nt relative to its neutral imine tautomer in primary amine catalysts having outer-sphere silanols par

89 Direct comparison of the designed enzymes to primary amine catalysts in solution revealed a rate acce

90 One of these primary amine catalysts, consisting of a polar outer-sph

91 A cinchona-alkaloid-derived chiral primary-amine-catalyzed enantioselective method for the

92 and is selective for the dehydrogenation of primary amines (-CH2NH2) in the presence of amines witho

93 ist et al. using a cinchona alkaloid-derived primary amine (cinchona amine) organocatalyst, have been

94 tRAL) is directly cytotoxic and that certain primary amine compounds that transiently sequester atRAL

95 The primary amine compounds were initially obtained as their

96 ort here the detection and quantification of primary amine-containing compounds in the original sampl

97 The attachment of primary amine-containing MBs to the PMMA surface was car

98 veloped a high-throughput method to quantify primary amine-containing metabolites in the yeast Saccha

99 by its immersion in an aqueous solution of a primary amine-containing polymer (polyallylamine (PAAm))

100 t shows pronounced enantioselectivity toward primary amine-containing racemates, separating 98% of th

101 d via a heterobifunctional coupling agent to primary amine-containing surfaces and gels.

102 The overexpression of pgaB increased the primary amine content (glucosamine) of PGA.

103 gation in these compounds matches the single primary amine coordination of the putative active site o

104 onal groups capable of anchoring probes with primary amines covalently.

105 The bases are a primary amine (-CPh(2)NH(2)), an imidazole, and a pyridi

106 involving condensation of an aldehyde with a primary amine, cyclization (with displacement of a halid

107 A primary amine-derivatized 4-dibenzocyclooctynol (DIBO) w

108 ect addressed in this article is a series of primary amines deriving from aniline having been engaged

109 of peroxisomes, such as methanol, oleate, or primary amines, determine the requirements for subsequen

110 The choice of the appropriately substituted primary amine, diamine or polyamine, allows the design o

111 ons of protonated ammonia and the protonated primary amines either in the interior or at the surface

112 thod for discriminating between alpha-chiral primary amine enantiomers is reported.

113 to NPs, owing to its capability to label the primary amines exposed on protein surface, but also coul

114 vinylketones catalyzed by a vicinal thiourea-primary amine first reported by Tius have been explored

115 san (GC) polymer, which contains pH-titrable primary amines, followed by gadolinium complexation (GC-

116 e synthesis of aryl-, heteroaryl-, and alkyl primary amines from the corresponding boronic acids has

117 tic backbones can be achieved in which a new primary amine function represents a possible center for

118 abling feature of this chemistry is that the primary amine functionality (-CH2NHBoc) of the original

119 ydryl group may be used to conjugate MAG3 to primary amine functionalized biomolecules for the purpos

120 d to covalently conjugate a MAG3 chelator to primary amine functionalized biomolecules.

121 In contrast to other primary amine-functionalized solid adsorbents that uptak

122 ation of 4-bromophthalazin-1(2H)-ones 4 with primary amines generates aminophthalazin-1(2H)-ones in g

123 h an aldehyde group and a peptide ion with a primary amine gives rise to water loss in conjunction wi

124 icarbonyls glyoxal and methylglyoxal and the primary amines glycine and methylamine have been determi

125 The N-terminus primary amine group does not make a significant contribu

126 rine PL in the presence or in the absence of primary amine group from aminophospholipids and amino ac

127 bond is formed between a free, unprotonated, primary amine group of a lysine side chain in the peptid

128 acT, is an acetyltransferase that blocks the primary amine group of amino acids on charged tRNA molec

129 r reagents was developed that react with the primary amine group of glycerophosphoethanolamine (PE) l

130 on going from a tertiary to a secondary to a primary amine group, but that solvent insertion dominate

131 ion between the carboxyl group of 5caC and a primary amine group.

132 s of all-trans-retinal by drugs containing a primary amine group.

133 PS NP coated with primary amine groups (NH2) possessed positively charged

134 DOTA-tetraamide complexes with four appended primary amine groups are measured as a function of pH.

135 g reduction, there was sufficient amounts of primary amine groups for covalent attachment of a polyet

136 Covalent modification of primary amine groups in multiply protonated or deprotona

137 The ability to covalently modify primary amine groups in the gas phase with N-hydroxysucc

138 Different primary amine groups were found to be (potential) labeli

139 OSCs with primary amine groups were reacted with isotopic formalde

140 When primary amine groups were reintroduced by azide-alkyne c

141 tacetate, through reactions with its pendant primary amine groups.

142 ely modifying other analytes containing free primary amine groups.

143 (2), with HN(SiMe(3))(2) elimination, by the primary amines H(2)NAr* or H(2)NAr(#).

144 mplete reduction of a nitrile (CN) bond to a primary amine (H(2)C-NH(2)).

145 atalyze reactions of isocyanides (CN-R) with primary amines (H2N-R') and O2 to give carbodiimides (R-

146 les from carboxymethyl cyclohexadienones and primary amines has been developed.

147 of the enantioselective capabilities toward primary amines, however they gain broad selectivity for

148 with a covalent modification of unprotonated primary amines (i.e., N-terminus and epsilon-NH(2) of ly

149 nitrobenzene sulfonic acid (TNBS) binding to primary amines, (ii) electrophoretic migration in polyac

150 nitriles were reduced to their corresponding primary amine in 70-99% isolated yields.

151 ositive modulation critically depends on the primary amine in JKJ05, which appears to interact with a

152 ent at hydrolyzing substrates that contain a primary amine in the antibiotic R-group that would be cl

153 e formation generated via reaction between a primary amine in the peptide cation and the aldehyde moi

154 to be positioned to interact with the distal primary amine in the putrescine substrate as well as the

155 s undergo hydrogenation to the corresponding primary amines in good to excellent yields under the rea

156 rides, bromides, and iodides react with many primary amines in high yields with part-per-million quan

157 rivatives can detect and identify protonated primary amines in methanol and in water, and even discri

158 r to substituted pyrroles in the presence of primary amines in protic solvent at ambient temperatures

159 tom bond formation strategy to functionalize primary amines in tandem to produce a series of valuable

160 associated with the oxidative degradation of primary amines in the absorber unit, a process known to

161 at a conjugated thiophene vinylene dyad with primary amines in the alpha,alpha'-positions could be pr

162 he side chain of arginine (Arg), and several primary amines including methylamine, ethylamine, n-prop

163 Several primary amines including simple amino acids such as glyc

164 st can be replaced by commercially available primary amines, including alpha-methylbenzylamine, with

165 A wide variety of primary amines, including amino acids and more complex a

166 our disaccharide standards containing a GlcN primary amine indicated that the beta anomer of the GlcN

167 es than their linear analogues prepared from primary amine-initiated polymerizations.

168 formaldehyde by in situ condensation with a primary amine into the corresponding imine in very mild

169 hylamine dehydrogenase (MADH) which converts primary amines into the corresponding aldehydes and ammo

170 Zincke reaction allows the transformation of primary amines into their respective N-alkylated or N-ar

171 74-III can be covalently functionalized with primary amine (IRMOF-74-III-CH2NH2) and used for the sel

172 A benzoquinone-masked primary amine is attached to this surface via Cu(I)-cata

173 ronsted acid catalyzed kinetic resolution of primary amines is described that is based on the condens

174 amination employing ammonia and hydrogen to primary amines is described.

175 tones catalyzed by cinchona alkaloid-derived primary amines is determined with density functional cal

176 (II)-catalyzed gamma-C(sp(3))-H arylation of primary amines is realized by using 2-hydroxynicotinalde

177 ctive N-alkylation of various heteroaromatic primary amines is reported.

178 the preparation of N(G)-aminoguanidines from primary amines is reported.

179 f alkylpyridinium salts, readily formed from primary amines, is the first example of a metal-catalyze

180 ause this assay relies on the formation of a primary amine, it could be adapted to measure the activi

181 ly, in the presence of an excess amount of a primary amine, it is demonstrated that this catalytic sy

182 tic ring with Pd(II) occurs, directed by the primary amine, leading to the formation of a palladacycl

183 aining aldehyde functionalities and selected primary amines leads to several XF-imine derivatives.

184 uble nucleophilic substitution reaction with primary amines led to the synthesis of amino-substituted

185 Reactivity studies presented here show primary amine ligated cores are competent oxidants, capa

186 ivity provide hints to the potential role of primary amine ligation in pMMO: increased substrate acce

187 Primary amine ligation in these compounds matches the si

188 Hydrophobic primary amines like farnesylamine also showed inhibitory

189 -C 2B 7H 13 carborane with the secondary and primary amines, Me 2NHBH 3 and ( t )BuNH 2BH 3, in ionic

190 This accumulation was reduced by primary amine modification of the nanoparticles.

191 ess, the pK(a) values of the carboxylate and primary amine moieties of 11 heparin disaccharide standa

192 metal oxide nanotubes with covalently bonded primary amine moieties on their inner wall, synthesized

193 L1)Pd(p-tolyl)](+) fragment occurred via the primary amine moiety, affording the crystallographically

194 tions identified the salt-bridge between the primary amine of 5-HT and the lipid phosphate group as t

195 atalyzes the hydroxylation of the side chain primary amine of ornithine in the initial step of the bi

196 nine, as well as reductive alkylation of the primary amine of ornithine, and each product was evaluat

197 The precursor primary amine of Sch225336 was prepared and reacted dire

198 se of substrate-assisted catalysis where the primary amine of the ampicillin R-group positions the hy

199 de bound to the vancomycin protonated at the primary amine of the disaccharide group.

200 e, a cleavable chromogen, were conjugated to primary amines of a hydrated poly(HEMA)-based hydrogel.

201 '-phosphosulfate (PAPS) to the hydroxyls and primary amines of acceptors.

202 -phosphosulfate (PAPS)] to the hydroxyls and primary amines of numerous metabolites, drugs, and xenob

203 e aldehyde groups of reducing sugars and the primary amines of proteins.

204 moiety, respectively, were conjugated to the primary amines of the dendrimer.

205 osine 5'-phosphosulfate to the hydroxyls and primary amines of these acceptors.

206 sine 5'-phosphosulfate) to the hydroxyls and primary amines of xeno- and endobiotics.

207 ophilic primary amines (typically, aliphatic primary amines) often lead to quantitative reactions and

208 2-(S,S)-d(3), was prepared and used to assay primary amines on a micromolar scale.

209 -iodophenylisothiocyanate, are used to label primary amines on peptides to demonstrate the scaling an

210 CuAOs) catalyze the oxidative deamination of primary amines operating through a ping-pong bi-bi mecha

211 red ring systems, by addition of a lithiated primary amine or hydrazine 5 to a dinitrile 7, 8, or 9 w

212 -3-(methylthio)acrylonitrile precursors with primary amines or amides via two key C-N bond-forming pr

213 groups for water solubilization, and either primary amines or biotin groups for derivatization.

214 amines, tertiary amines, sterically hindered primary amines, or amines without oxygenated groups.

215 Employing a cyclohexanediamine-derived primary amine organocatalyst, a range of prochiral cyclo

216 nced enthalpic contributions associated with primary amines over secondary amines, but may be due to

217 es are shown to selectively recognize linear primary amines--over branched, secondary, and tertiary a

218 Vascular adhesion protein-1 (VAP-1) is a primary amine oxidase and a drug target for inflammatory

219 -HT shows the opposite orientation, with the primary amine pointing toward the membrane core.

220 A random copolymer rich in primary amines, poly(2-aminoethyl methacrylate hydrochlo

221 Primary amines present in protonated polypeptides can be

222 The primary amine products can be isolated in excellent yiel

223 lic addition reaction of aromatic aldehydes, primary amines, propiolic acid, isocyanides, and hydrazi

224 er(III) bis(mu-oxo) complexes ligated by the primary amines, propylenediamine, and N,N,-dimethyl prop

225 etric reactions between the precatalysts and primary amines provided an important model for catalyst

226 The primary amines (R,R)-18-20 with an axially oriented phen

227 When using a chiral primary amine, racemic nitroepoxides are transformed int

228 1.0 nM to 2.6 nM, and we identified several primary amines ranging in length from C2 to C16 in Titan

229 Primary amines react faster than secondary amines due to

230 oped for PET of integrin expression based on primary amine-reactive prosthetic groups.

231 on substitution reactions with virtually any primary amine, regional control of the substitution with

232 The catalytic hydrogenation of nitriles to primary amines represents an atom-efficient and environm

233 ategy to generate a sugar-1-phosphate, and a primary amine-requiring nucleotidylyltransferase that ge

234 vivo, likely due to the presence of multiple primary amines responsible for their polyP binding abili

235 e NO donors was examined via the reaction of primary amine, secondary amine, and amide functionalitie

236 effective N-acylating agents, reacting with primary amines, secondary amines, and sulfonamides to fo

237 beta-sultams in buffered solutions of simple primary amines shows a first-order dependence on amine c

238 Ozonation followed by chlorination of the primary amine side chain of lysine demonstrated low yiel

239 typically initiated by hydroxylation of the primary amine side chains of l-ornithine or l-lysine.

240 more important than in the absorber, but for primary amines, significant formation of total N-nitrosa

241 ylisothiourea for 1 to 2 h and the number of primary amine sites at which covalent labeling occurs is

242 techniques, identified eight reactive lysine primary amine sites.

243 The assay employs fluorescamine, a primary-amine specific fluorogenic dye, to label protein

244 ollowing advantages: it uses a wide range of primary amines, starting materials are easily available,

245 eeds via Schiff base chemistry, in which the primary amine substrate first attacks the C5 carbonyl of

246 ctions: a reductive half-reaction in which a primary amine substrate is oxidized to its corresponding

247 nd the absolute initial concentration of the primary amine substrate show that the latter parameter s

248 analogous to that observed with unprotonated primary amines such as the N-terminus or epsilon-amino g

249 ansamidations involving secondary amides and primary amines suggest that tertiary amide/secondary ami

250 ctrophiles that form adducts with thiols and primary amines, suggesting that covalent modification, r

251 entrations of LAuX in solutions containing a primary amine-terminated dendrimer leads to clear soluti

252 Proton transfer occurs only with linear primary amines, that is, when the best size and shape fi

253 Conveniently synthesized from protected primary amines, the hydrazone DGs are shown to site-sele

254 method for installation of the t2M motif on primary amines, the method described herein streamlines

255 The receptor encapsulates alkyl-substituted primary amines, then orients them toward a covalently te

256 promotes high selectivity for reactions with primary amines, thereby constraining the scope of potent

257 f the dimethyl ester derivative with various primary amines, this methodology was used to design a ra

258 harges that develop during the addition of a primary amine to a cyclic sulfate.

259 n-state-derived ligands incorporate a single primary amine to interact with the catalytic aspartates

260 adducts produced from covalently attaching a primary amine to the spiroiminodihydantoin lesion, were

261 enzymes with quinone cofactors that oxidize primary amines to aldehydes.

262 rs govern the selectivity in the addition of primary amines to alpha,beta-unsaturated aldehydes and k

263 r the click reaction family: the addition of primary amines to alpha-tertiary isocyanates (alpha-(t)N

264 dynamic kinetic resolution (DKR) to convert primary amines to amides in high yields and excellent ee

265 Here, through chemical modification of the primary amines to aromatic domains we achieved nucleic a

266 r reactions, most particularly conversion of primary amines to azides.

267 h several chiral secondary alcohols and some primary amines to evaluate their potential as chiral der

268 ated with N-hydroxysuccinimide to react with primary amines to form a peptide bond.

269 en modified via carbamylation to convert all primary amines to less basic carbamates.

270 responsible for the oxidative deamination of primary amines to their corresponding aldehydes.

271 mine exchange followed by a cyclization with primary amines to yield fluorescent products with emissi

272 ost nonfluorescent in water, but addition of primary amines turns the fluorescence on; formation of i

273 While nucleophilic primary amines (typically, aliphatic primary amines) oft

274 ncluding industrially relevant dinitriles to primary amines under mild conditions.

275 on between simple secondary carboxamides and primary amines under moderate conditions.

276 Nitriles underwent reduction to primary amines under optimized conditions at 25 degrees

277 in situ from readily available enynones and primary amines undergo thermal cyclization in diphenyl e

278 The selective hydrogenation of nitriles to primary amines using a bench-stable cobalt precatalyst u

279 es, triflates, or nonaflates with aryl/alkyl primary amines using QUINAP as the ligand provides the c

280 he direct and stereoretentive deuteration of primary amines using Ru-bMepi (bMepi = 1,3-(6'-methyl-2'

281 idases catalyze the oxidative deamination of primary amines utilizing a type(II) copper center and 2,

282 rly with a phenol or intermolecularly with a primary amine via addition-elimination reaction(s).

283 The derived primary amine was acylated with alpha-phenylselenylacryl

284 7-nitro-2,1,3-benzoxadiazole (NBD-F) labeled primary amines was monitored as a proof of concept exper

285 The absolute configuration of the primary amines was unambiguously assigned by comparison

286 important enantiopure thionyl and arylalkyl primary amines were afforded by the borane-mediated enan

287 The absolute configurations of primary amines were assigned using a kinetic resolution

288 asured for the insertion of the DAC into the primary amines were consistent with an electrophilic act

289 ith optimal surface inorganic stoichiometry, primary amines were identified as "ideal" organic ligand

290 Finally, the primary amines were isolated through column chromatograp

291 Similarly high yields from other primary amines were limited to those with functional gro

292 permanently blocked by iodoacetamide and the primary amines were temporarily masked with citraconic a

293 1-arylethyl amines, including a prototypical primary amine with an alpha-chiral tertiary N-alkyl grou

294 as been accomplished via the alkylation of a primary amine with the bis-triflate of a 2-substituted-1

295 ies on the specific interactions between (i) primary amine with TNT and (ii) TNT and anti-TNT aptamer

296 Many reactions of primary amines with both heteroaryl and aryl chlorides,

297 hat Cu promotes N-nitrosamine formation from primary amines with hydroxyl or carboxyl groups (amino a

298 Oxidation of the primary amines with Pb(OAc)(4) in CH(2)Cl(2), CHCl(3) or

299 m salts as key intermediates that react with primary amines, yielding pyridinium salts.

300 treatment of mellitic acid with 3 equiv of a primary amine yields trisubstituted mellitic triimides v