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1 anoparticles' surface by transimination with hydroxylamine.
2 by the N-O bond cleavage of a functionalized hydroxylamine.
3 is that uses a novel pathway to make NO from hydroxylamine.
4 of nitrite and the two-electron reduction of hydroxylamine.
5 the subsequent reactivity of the respective hydroxylamine.
6 n ammonia oxidation by converting ammonia to hydroxylamine.
7 unique catalytic motif for glycosylation of hydroxylamine.
8 o isolate O-benzyl-N-((trimethylsilyl)methyl)hydroxylamine.
9 lly converted into imino nitroxide and imino hydroxylamine.
10 e two-electron oxidation of the amine to the hydroxylamine.
11 r 5-20 min with the appropriate hydrazine or hydroxylamine.
12 uction of nitrite or incomplete oxidation of hydroxylamine.
13 protection of the nitroxide as a benzoylated hydroxylamine.
14 g the hazardous reagent O-mesitylenesulfonyl hydroxylamine.
15 by preventing the accumulation of inhibitory hydroxylamine.
16 oscopy, establishing the intermediacy of the hydroxylamine.
17 s can stabilize nitroxide and/or destabilize hydroxylamine.
18 oposed intermediate in that process, namely, hydroxylamine.
19 on of alpha-phosphonate zincates with O-acyl hydroxylamines.
20 bond dissociation energy (BDENO-H) of the N-hydroxylamines.
21 ied with biotin, dyes, aliphatic oximes, and hydroxylamines.
22 ar conditions for both N-H and N-substituted hydroxylamines.
23 ped using diethoxymethylsilane and esters of hydroxylamines.
24 situ generation of the appropriate O-benzoyl hydroxylamines.
25 mproportionation with the nitronyl and imino hydroxylamines.
26 the conformational equilibria of substituted hydroxylamines.
27 chemoselective amide-forming reactions with hydroxylamines.
28 monstrated for delayed administration of the hydroxylamines.
29 atom transfer reagents such as N-oxides and hydroxylamines.
30 in situ deprotection of O-Ts activated N-Boc hydroxylamines.
32 , and contrary to the common expectation for hydroxylamines, 10-aza-9-oxakalkitoxin is not mutagenic.
34 um in the mixture of nitroxide and reference hydroxylamine (3-carboxy-1-hydroxy-2,2,5,5-tetramethylpy
35 and 39 from condensation of aldehyde 20 with hydroxylamine 36 underwent intramolecular dipolar cycloa
36 of O-acetoxy-N-(4-(benzothiazol-2-yl)phenyl)hydroxylamine 8, a model metabolite of 2-(4-aminophenyl)
37 are activated by CYP450 1A1, apparently into hydroxylamines 8a-g that are likely metabolized into est
38 y copolymerization with N,O-(dimethacryloyl) hydroxylamine, a cross-linker previously used in the pre
42 UV-visible absorbance spectroscopy revealed hydroxylamine accessibility to the chromophore-binding p
43 esulfonyl)hydroxylamine or O-(p-nitrobenzoyl)hydroxylamine afforded N-aminooxazolidinones which were
44 zines, methylamine, t-butyl hydroperoxide, N-hydroxylamine, alpha-chloroacetaldehyde and glutaraldehy
45 doreductase (mHAO) in their genome to remove hydroxylamine, although biochemical evidence for this is
46 sterase-mimetic small molecule, N-tert-butyl-hydroxylamine, ameliorated the CD-processing defect.
47 ain cause was the formation and diffusion of hydroxylamine, an AOB nitrification intermediate, from t
48 sing 1 equiv of N-phenethyl-O-(4-nitrophenyl)hydroxylamine and 2 equiv of pyruvic acid in the presenc
53 roxide is readily reduced by HNO to nitronyl hydroxylamine and is eventually converted into imino nit
57 philic addition pathways, we also found that hydroxylamine and presumed nucleophilic moieties in mode
58 iometric measurements, and quantification of hydroxylamine and sodium nitrite as end reaction product
59 by ammonia-oxidizing bacteria (AOB) via the hydroxylamine and the nitrifier denitrification pathways
60 n of the alpha-amine of valine, first to the hydroxylamine and then the nitroso, while linked to the
64 gen-evolving complex of dark-adapted intact (hydroxylamine) and salt-washed (hydroquinone) photosyste
66 formed via (photo)reaction with thiosulfate, hydroxylamine, and ammonia] are notably more polar relat
67 le extraction, precolumn derivatization with hydroxylamine, and LC-MS/MS analysis was validated with
68 IL-1-generated oxyester bonds to cleavage by hydroxylamine, and macrophages from knock-in mice expres
69 a II decay, the reactivity of meta II toward hydroxylamine, and the rate of meta III formation in Gtg
70 s between nitrogen nucleophiles, enones, and hydroxylamines, and a solid-phase application of the Hui
71 rms of nitrogen such as amines, ammonia, and hydroxylamine; and (c) oxidized forms of nitrogen such a
72 of the Cys-palmitoyl thioester linkages with hydroxylamine; and (iii) labeling of thiols, newly expos
76 c assay for adenylation enzymes that employs hydroxylamine as a surrogate acceptor molecule, leading
81 l arylamines using NH2/NH(alkyl)-O-(sulfonyl)hydroxylamines as aminating agents; the relatively weak
82 ons of diorganozinc reagents using O-benzoyl hydroxylamines as electrophilic nitrogen sources that ma
83 suppressed either by using a low pKa amine (hydroxylamine) as the acceptor or by performing reaction
84 aza-9-oxakalkitoxin, an N,N,O-trisubstituted hydroxylamine-based analog, or hydroxalog, of the cytoto
86 nally, we resolved 5fC at base resolution by hydroxylamine-based protection from bisulfite-mediated d
88 he stroma with 2,4-dinitrophenylhydrazide or hydroxylamine blocks essentially all corneal cross-linki
90 tion of the tyrosine D radical is reduced by hydroxylamine, but a smaller population reacts with hydr
91 ction among Z-chlorooximes, isocyanides, and hydroxylamines by exploiting the preferential attack of
93 n the basis of the equilibration of O-sialyl hydroxylamines by reversible homolytic scission of the g
94 on the reduction of O-(1-acyloxy-omega-azido)hydroxylamines by triethylsilane in the presence of boro
95 s reaction yields the corresponding nitronyl hydroxylamine C-PTIO-H and NO, which is trapped by C-PTI
97 malonohydroxamate, potentially derived from hydroxylamine capture of an enzyme-tethered acyl group.
99 of four nucleophiles-three anilines and one hydroxylamine-combine through condensation reactions to
101 natural ketone amino acid was labeled with a hydroxylamine-containing fluorophore with high yield (>9
102 Preliminary studies indicate that the new hydroxylamine-containing natural product derivatives hav
103 dition of hydrogen sulfide, water, methanol, hydroxylamine, cyanamide, hydrazine and methylhydrazine
106 ylcarbonylhydrazino d-biotin, a biotinylated hydroxylamine derivative that forms an oxime derivative
108 nation reactions between N-Boc-O-(but-3-enyl)hydroxylamine derivatives and aryl or alkenyl bromides a
109 quence of O-trifluoromethylation of N-aryl-N-hydroxylamine derivatives and intramolecular OCF3 migrat
111 licable to the synthesis of a broad range of hydroxylamine derivatives, including N-hydroxy amides (h
114 sociation energies (BDEs) of O-H bond in the hydroxylamines deriving from neutral and deprotonated fo
116 to N-H aziridines using O-(2,4-dinitrophenyl)hydroxylamine (DPH) via homogeneous rhodium catalysis wi
118 3-BPG to chemically trap the metabolite with hydroxylamine during metabolite isolation, enabling quan
119 he pAcPhe-Fabs were labeled by reaction with hydroxylamine dye and biotin species to produce well-def
120 effects, above the background observed with hydroxylamine-EDTA-Mn2+ as a control, are observed for t
121 retinal Schiff base of xanthorhodopsin with hydroxylamine eliminates the induced CD bands of salinix
122 thyl acetohydroximate serves as an efficient hydroxylamine equivalent for C-O cross-coupling, thereby
123 dride catalysis and the well-explored use of hydroxylamine esters as electrophilic amine sources in r
124 oamination of 1,1-disubstituted alkenes with hydroxylamine esters in the presence of a hydrosilane.
126 tream of water (or a weak base, e.g., dilute hydroxylamine), flowing through the second, longer secti
127 te, and potential small nucleophiles such as hydroxylamine, fluoride, methanol, and trifluoromethanol
128 ment of the resulting crude 5'-aldehyde with hydroxylamine followed by deprotection gave L-adenosine
130 r coated with O-(2,3,4,5,6-pentafluorobenzyl)hydroxylamine for in situ derivatization of the 1,4-hydr
131 experimental conditions, the initial rate of hydroxylamine formation (RH) can provide an estimate of
132 its activation energy is higher because the hydroxylamine fragment must distort more before the TS i
133 Regeneration of the arginine residue using hydroxylamine fully restored the enhancing ability of DA
134 of the incorporated nonnative amino acid and hydroxylamine functionalized monomethyl auristatin D wit
137 nstrate that protonated electron-poor O-aryl hydroxylamines give aminium radicals in the presence of
138 0 mum), beta-cyanoalanine (BCA, 500 mum) and hydroxylamine (HA, 100 mum), altered the NPV to PGF2alph
139 mination of N-aryl benzamides with O-benzoyl hydroxylamines has been achieved with either Pd(II) or P
140 alladium-mediated cyclization of unsaturated hydroxylamine, has been developed to obtain isoxazolidin
142 tion of Fe(III) by addition of 2.0 mL of 10% hydroxylamine HCl, the system was applied to the total i
143 ibition of CBS activity by O-(Carboxymethyl) hydroxylamine hemihydrochloride (AOAA) significantly att
144 tisation with O-(2,3,4,5,6-pentafluorobenzyl)hydroxylamine hydrochloride (PFBHA) or (in the case of M
145 ion step with O-(2,3,4,5,6-pentafluorobenzyl)hydroxylamine hydrochloride (PFBHA) was developed to qua
146 used an MS-compatible inorganic nucleophile, hydroxylamine hydrochloride, to chemically reverse inter
148 pid scanning spectroscopy in the presence of hydroxylamine in highly purified wild-type and Gtgamma-d
152 genation/cyclization of N-sulfonyl-O-butenyl hydroxylamines in the presence of (2,2,6,6-tetramethylpi
154 copies during the HAO catalyzed oxidation of hydroxylamine, indicating that N-oxide intermediates pro
157 hanol for energy conservation, whereas toxic hydroxylamine is a potent inhibitor that needs to be rap
158 droxylation of olefins with a functionalized hydroxylamine is catalyzed by new iron(II) complexes.
159 Cope-type rearrangements of bis-homoallylic hydroxylamines is demonstrated using chiral thiourea der
160 boamination reactions of N-Boc-O-(but-3-enyl)hydroxylamines is significantly higher than that of rela
161 This strategy employs the alpha-ketoacid-hydroxylamine (KAHA) ligation in combination with a new
162 cific formal [3+1] cycloaddition with simple hydroxylamines, leading to the efficient formation of ch
163 uring the plateau phase, while those for the hydroxylamine leaving group [(15)(V/K)(NH(2)OH)] were 1.
164 lized the unique features of an acylboronate-hydroxylamine ligation, in which covalent bonds are brok
166 ve handles (amine, thiol, thioester, ketone, hydroxylamine, maleimide, acrylate, azide, alkene, alkyn
169 topoisomerase IIbeta cDNAs was generated by hydroxylamine mutagenesis and was transformed into the y
170 also given for the reversible formation of a hydroxylamine N-oxide when nitroxyls are oxidized in alk
172 nia, caffeine, methylamine, ethylenediamine, hydroxylamine, n-butylamine, adenosine, cytosine, guanin
173 erent functional groups, such as sulfoxides, hydroxylamines, N-oxides, anilines, phenol, an aliphatic
176 ealed that NH(4)(+) was oxidized to N(2) via hydroxylamine (NH(2)OH) as intermediate, and comparative
177 trification), with a minor contribution from hydroxylamine (NH(2)OH) oxidation at the beginning of th
178 e presumptive product of the putative AMO is hydroxylamine (NH(2)OH), the absence of genes encoding a
179 oxidation intermediates nitric oxide (NO) or hydroxylamine (NH2OH) for N2O production have been indic
180 The proposed NO2(-) reduction intermediate hydroxylamine (NH2OH) is a nitrogenase substrate for whi
182 ) as the terminal electron acceptor) and the hydroxylamine (NH2OH) pathway (N2O as a byproduct of inc
183 from the AOB Nitrosomonas europaea converts hydroxylamine (NH2OH) quantitatively to N2O under anaero
185 Studies were then undertaken to exploit the hydroxylamine/nitroso redox couple using LC-DED detectio
186 oxide, nitrogen dioxide, ammonia, hydrazine, hydroxylamine, nitrous acid, oxygen, and carbon dioxide)
187 on and tested for protection by N-tert-butyl hydroxylamine (NtBHA), a known mitochondrial antioxidant
188 t a hydroxylamine derivative, N-(tert-Butyl) hydroxylamine (NtBuHA), was non-toxic, cleaved thioester
190 lication of the well-known aminating reagent hydroxylamine-O-sulfonic acid (HOSA) has been explored a
191 iridination of olefins is reported that uses hydroxylamine-O-sulfonic acids as inexpensive, readily a
192 were isolated when O-tert-butyl protected N-hydroxylamines of glycine were employed in the reaction.
194 uent ATR dissociation, either by addition of hydroxylamine or introduction of mutations, further incr
195 -2-oxazolidinones with O-(mesitylenesulfonyl)hydroxylamine or O-(p-nitrobenzoyl)hydroxylamine afforde
196 eadily prepared from the reaction of diverse hydroxylamines or hydrazines with reagent classes di(ben
203 the four electrons generated as a result of hydroxylamine oxidation, among the three enzyme subunits
205 eme protein as found for HAO and HAO-related hydroxylamine-oxidizing enzyme kustc1061 from K. stuttga
206 Within this model, the multiheme enzyme hydroxylamine oxidoreductase (HAO) catalyzes the four-el
208 ogous to those of the catalytic heme P460 of hydroxylamine oxidoreductase (HAO), the only known heme
211 s suggested that many methanotrophs encode a hydroxylamine oxidoreductase (mHAO) in their genome to r
212 ccelerated loss of ammonia monooxygenase and hydroxylamine oxidoreductase activities upon entering st
213 recognizable ammonia-oxidizing bacteria-like hydroxylamine oxidoreductase complex necessitates either
214 ution and refinement and reassessment of the hydroxylamine oxidoreductase structure from Nitrosomonas
217 AOB) (namely the AOB denitrification and the hydroxylamine pathways) and the N2O production pathway b
219 uminated homogenates with 11-cis-retinal and hydroxylamine prior to the AMP-PNP incubation and by mea
220 very small; comparative reactions of cyclic hydroxylamine probes indicated that virtually none of th
222 is based on the discovery that N-(tert-butyl)hydroxylamine promotes indole modification with rhodium
223 -L-phenylalanine (p-AcPhe) is reacted with a hydroxylamine reagent to generate a nitroxide side chain
224 To determine the involvement of a putative hydroxylamine reductase (PG0893) and a putative nitrite
229 dition of the competitive catalase inhibitor hydroxylamine resulted in a dose-dependent impairment of
230 amolecular bromoamination of O-allyl-N-tosyl-hydroxylamines results in the formation of isoxazolidine
232 ns that minimize cleavage of the traditional hydroxylamine-sensitive Asn-Gly and related peptide bond
233 mately 300 17-octadecynoic acid-modified and hydroxylamine-sensitive proteins, of which a subset was
235 eveloped a mass-tag labeling method based on hydroxylamine-sensitivity of thioesters and selective ma
237 4e-, 4H+ reduction of the 7-nitro group to a hydroxylamine species; the second more negative peak, de
238 was cleaved by thiol reagents and by neutral hydroxylamine, strongly suggesting a thioester bond.
239 ling catalytic reduction of both nitrite and hydroxylamine substrates by ecNrfA adsorbed to a graphit
240 nt inhibition of phototaxis in both bands by hydroxylamine suggest the involvement of two rhodopsin p
241 mation that is eliminated by the addition of hydroxylamine, suggesting that truncation of the N-termi
242 at 0 degrees C to give N,N,O-trisubstituted hydroxylamines suitable for medicinal chemistry purposes
243 g antioxidants (e.g., phenols, diarylamines, hydroxylamines, sulfenic acids), which tend to have high
245 es Ru(III)(acac)2(py-im) (Ru(III)im) and the hydroxylamine TEMPO-H by transfer of H(*) (H(+) + e(-))
246 -tert-butylnitroxyl ((t)Bu(2)NO(*)), and the hydroxylamines TEMPO-H, 4-oxo-TEMPO-H, 4-MeO-TEMPO-H (2,
247 ,6-tetramethyl-1-piperidinoxyl) to yield the hydroxylamine, TEMPO-H, and the respective deprotonated
248 propylidine ascorbate, hydroquinone, and the hydroxylamine TEMPOH all rapidly add H* to FeIIIIm to gi
251 formation of chiral diols and O-substituted hydroxylamines, the generation of quaternary carbon ster
255 derivatized with O-(biotinylcarbazoylmethyl)hydroxylamine to enrich the modified peptides by avidin-
258 oxidation, the extraction of electrons from hydroxylamine to generate proton-motive force and reduct
262 ining a chloride and alkene were heated with hydroxylamine to promote cascade, tandem condensation to
263 pha-acetoxy ketone with a substituted benzyl hydroxylamine to provide the corresponding nitrone.
265 effects were also measured for aminolysis by hydroxylamine to study a reaction similar to the formati
267 on experiments have shown that tethering the hydroxylamine to the alkene or alkyne can reverse the re
268 sed to study the intramolecular additions of hydroxylamines to alkenes and alkynes ("reverse Cope eli
269 sigmatropic rearrangement of the N,O-divinyl hydroxylamines to corresponding imino-aldehydes (Paal-Kn
270 ]quinolin-3(1H)-one as "masked" heterocyclic hydroxylamines to generate Paal-Knorr intermediates of t
271 at involve hydrogen atom transfer (HAT) from hydroxylamines to nitroxyl radicals, using the stable ra
273 y the C169S protein was resistant to neutral hydroxylamine treatment, consistent with formation of an
274 properties of soNrfA during both nitrite and hydroxylamine turnover and compare those properties to t
275 e turnover and negative cooperativity during hydroxylamine turnover, neither of which has previously
277 ation of N-tosyl aldimines applying modified hydroxylamine under asymmetric phase-transfer catalysis
278 photic bleaching and chemical bleaching with hydroxylamine under conditions that fully bleach rod and
279 ii) the succinimidyl bond is then cleaved by hydroxylamine under conditions that minimize cleavage of
281 minoxide, which is subsequently converted to hydroxylamine via water-mediated proton shuttling, with
286 zoyloxyamines as both aliphatic amines and N-hydroxylamines were shown not to react productively with
288 itroalkanes are reduced to the corresponding hydroxylamines which are combined with aldehydes to form
289 to produce a relatively stable product, the hydroxylamine, which can be derivatized with fluorescami
290 In methanotrophs, mHAO efficiently removes hydroxylamine, which severely inhibits calcium-dependent
292 with (2,2,6,6-tetramethylpiperidin-1-yl)oxyl hydroxylamine while the peroxide, unlike the superoxide,
293 tions of amines, hydrazines, hydrazides, and hydroxylamines with benzhydrylium ions and quinone methi
295 luorescein-conjugated latex beads and cyclic hydroxylamines with differing membrane permeabilities.
298 ii) labeling of thiols, newly exposed by the hydroxylamine, with biotin-HPDP (Biotin-HPDP-N-[6-(Bioti
299 terminal peptide amines to the corresponding hydroxylamines without overoxidation or erosion of stere
300 e nuclear lysate with O-(pyridin-3-yl-methyl)hydroxylamine, yielding an oxime derivative that is stab