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1 alG4), whose catalytic functions are clearly regiospecific.
2 thase (ISPS), enzymes that catalyze a formal regiospecific 1,4-conjugate elimination of hydrogen diph
3 a functionalized arylstannane gave expedient regiospecific access to a wide range of functionally div
4 ence of substituted pyridine N-oxides offers regiospecific access to acyl/aryl, acyl/alkenyl, and acy
7 ring, we unravel structural contributions to regiospecific aldol condensations and show that reshapin
8 report that the cleavage products vary from regiospecific alkyl cleavage to predominant aryl cleavag
10 iliverdin IXalpha by heme oxygenase involves regiospecific alpha-meso-hydroxylation followed by extru
11 tion of proteins entails forming two or more regiospecific amide bonds of multiple free peptide segme
15 dies revealed that SRPK1 phosphorylates RS1, regiospecific and temporal-specific control within the l
16 dies reveal CalE10-catalyzed oxidation to be regiospecific and to present trace amounts of the corres
18 stal cavity where substrate must bind during regiospecific aromatic ring hydroxylation catalysis.
20 lts show that the process was not completely regiospecific at sn-1,3 positions, due to the spontaneou
22 our unprotected segments forming two or more regiospecific bonds consecutively without a deprotection
23 s good functional-group compatibility and is regiospecific, both of which can be issues with traditio
28 such as 1c,f,g are mild, regioselective, and regiospecific C-acylating agents of particular utility w
29 quinoxalines) and methylbenzenes leading to regiospecific C-aroylation has been accomplished using A
30 Using this strategy, we demonstrate ortho-regiospecific C-H activation of pyridines and an example
37 controlled on microfabricated substrata with regiospecific chemistry by confining attachment and spre
38 hydrolyzed products was consistent with the regiospecific chlorination at position 5 and then positi
39 oramine likely plays a key role in directing regiospecific chlorination of substrate in this importan
40 sis of these compounds, a novel tin-mediated regiospecific cleavage reaction of the dioxole intermedi
41 son-Khand reaction has been explored for the regiospecific construction of [5.5.5.5]- and [5.6.6.5]te
42 ings are presented as a new strategy for the regiospecific construction of diaryl and alkyl aryl ethe
43 for the mechanistic and structural study of regiospecific control of the substrate hydroxylation by
44 Interestingly, both the stereoselective and regiospecific control over phenoxy radical-radical coupl
45 The reaction proceeds smoothly in absolute regiospecific control when symmetrical diynes are applie
47 with unique chemical reactivity that allows regiospecific covalent conjugation in the presence of th
49 t in aromatic polyketide biosynthesis is the regiospecific cyclization of a linear, preassembled poly
52 is a bifunctional protein that catalyzes the regiospecific cyclization of the Tcm PKS-bound linear de
53 nthases (NR-PKS group of IPKSs) results from regiospecific cyclizations of reactive poly-beta-keto in
56 tutive monoterpenes that is conferred by two regiospecific cytochrome P450 limonene-3- and limonene-6
57 ups) and its d4-analogue provide evidence of regiospecific decompositions after attachment of fluorid
61 te localization to the base of the heart and regiospecific distributions of nucleoside derivatives an
62 eal that the CT exerts both multifaceted and regiospecific effects on catalytic activities and relate
65 e by heme oxygenase (HO-1) results in highly regiospecific extrusion of the alpha-meso-carbon as CO a
67 crete aromatase/cyclase enzymes in bacteria, regiospecific first-ring aldol cyclizations result in ch
68 benzoyl-CoA, respectively, and is apparently regiospecific for acylation of the 2alpha-hydroxyl group
69 tructure of a ligase ribozyme that catalyzes regiospecific formation of a 5' to 3' phosphodiester bon
70 , the formation of six stereocenters and the regiospecific formation of six rings in A-74528 appear t
72 ification has been demonstrated to be highly regiospecific, forming proteinogenic para-Tyr (p-Tyr) ex
73 tC is a geranyl transferase that catalyzes a regiospecific Friedel-Crafts alkylation of the naphthace
75 n chemistry, the latter enabling the direct, regiospecific functionalization of the unsubstituted thi
76 ping approach to explore the determinants of regiospecific glycosylation of two GTs of Arabidopsis th
77 cosubstrates, purified RebH displays robust regiospecific halogenating activity to generate 7-chloro
80 A key step employed the chemospecific and regiospecific hydroboration/oxidation at C(16)-C(17); th
81 dihydroxybenzoyl)serine (DHB-Ser) moiety and regiospecific hydrolysis of an ester linkage in the tril
82 iron enzymes, which catalyze the stereo- and regiospecific hydroperoxidation of unsaturated fatty aci
83 distinct cytochrome P450s that catalyze the regiospecific hydroxylation of (-)-4S-limonene at C3 or
84 enantiofacial errors, and is 3.5 times less regiospecific in propylene polymerizations at the same c
85 differentiate block-hybrid dendrons and was regiospecific in the retro-aldol reaction of dendron 21.
87 anamidyl/arylcyanamidyl radical, followed by regiospecific interaction of its nitrile-N center with b
89 so been extended to deuterodeboronations for regiospecific ipso-deuterations of aryls and heteroaryls
90 addition with a 3-furyl-benzoate followed by regiospecific lactonization provided rapid, large-scale
91 pagation within a highly stereoselective and regiospecific living coordination polymerization of 1,6-
92 into the imidazole moiety was achieved in a regiospecific manner to establish both C-N bonds to C(6)
93 on metal catalysis, the reaction occurs in a regiospecific manner, leading exclusively to the product
96 nt O-methyltransferase; (ii) NcsB1 catalyzes regiospecific methylation at the 7-hydroxy group of its
97 -induced cytokine secretion was dependent on regiospecific methylation of the flavonol scaffold with
98 level of control of scaffold bioactivity by regiospecific methylation, with important implications f
99 xpected to further enhance the potential for regiospecific modification of bacterial aromatic polyket
100 aerobic, transition-metal-free, direct, and regiospecific mono-alpha-arylation of ketones to yield a
103 sol and o-methoxyphenol as model substrates, regiospecific mutants of T4MO were created; for example,
104 a four-component complex that catalyzes the regiospecific, NADH-dependent hydroxylation of toluene t
105 bstrates for C4-prenylation and also acts as regiospecific O-dimethylallyltransferase (DMAT) on a tyr
106 ynaphthoic acids as substrates and catalyzes regiospecific O-methylation; and (iv) the carboxylate an
108 id-mediated conditions, the model under went regiospecific oxa-conjugate addition producing a stable
109 ethionine salvage pathway that catalyzes the regiospecific oxidation of 1,2-dihydroxy-3-oxo-(S)-methy
111 e, an enzyme has been engineered so that its regiospecific oxidation of a substrate can be controlled
113 oluene-o-xylene monooxygenase influences the regiospecific oxidation of aromatics (e.g., from o-creso
115 alpha-sulfonamide carbanion is possible and regiospecific oxidation with chromyl acetate has been ac
116 que 'grab-and-pull' mechanism to control the regiospecific phosphorylation of its protein substrate.
117 This is consistent with their formation by a regiospecific polymerization of C(1) species derived fro
118 differential activity has drawn attention to regiospecific preparation of the C-2, C-5, and C-6 preny
121 ted that methionine oxidation can direct the regiospecific proteolysis of peptides by cathepsin G.
122 tion is generated by anchimerically assisted regiospecific protonation of a double bond adjacent to t
123 proved this novel technique by capturing the regiospecific reaction between a thiol and a vicinal dis
124 an-1-amine isomer (b) occurred, leading to a regiospecific reaction in the radiolabeling of [(18)F]-f
126 ay are a valuable resource for understanding regiospecific reactions and substrate selectivities and
127 from vinorelbine by means of an original and regiospecific rearrangement and subsequent diastereosele
128 The target N9-H analogues were obtained via regiospecific reductive amination of the appropriate ben
129 The N9-CH3 analogues were synthesized via a regiospecific reductive methylation of the corresponding
130 MS analyses proved unequivocally the highly regiospecific regular prenylation at C-5 of the indole n
131 ed by means of quaternization and subsequent regiospecific ring opening at C4 of the azetidinium inte
133 of triethylamine hydrobromide, enabled their regiospecific ring-opening at C6 position by organometal
134 hese indole alkaloids and provides the first regiospecific route to 11-methoxy-substituted ajmaline/v
136 [FAC], [Cl(-)]) permitted quantification of regiospecific second-order rate constants for formation
137 ide, bromide, and chlorine) were varied, and regiospecific second-order rate constants were calculate
139 An efficient synthetic strategy for the regiospecific silylvinylation of internal alkynes is des
140 a and para dibenzyl pyromellitates served as regiospecific sources of other diesters, by further este
141 inal bronchioles and support the notion that regiospecific stem cell niches function to maintain epit
142 This ester was then employed in the first regiospecific, stereospecific total synthesis of (+)-12-
145 tive L-dCs are introduced into a D-template, regiospecific synthesis of 3'-5' oligo(G)s proceeds to t
146 promoted the mild and efficient stereo- and regiospecific synthesis of biologically important vinyl
149 col provides the facile and highly efficient regiospecific synthesis of various 1,2,4-thiadiazole der
151 uV, none of which are shell proteins, allows regiospecific targeting of the reporter group to the emp
152 rmer is the more stereospecific and the less regiospecific, the sum of these two enantioface errors i
154 Type A photorearrangements of 9a-g were regiospecific to give mixtures of two diastereomers of t
155 ut 10-fold more efficiently than (2S)-1, and regiospecific toward both substrates with exclusive atta
156 acetyl CoA, respectively, and is apparently regiospecific toward the 10-hydroxyl group of the taxane
157 a molecular mass of 54 kDa and catalyzed the regiospecific transfer of a glucuronosyl unit from UDP-g
158 fucosyltransferase 1 (AtFUT1) catalyzes the regiospecific transfer of terminal 1,2-fucosyl residues
159 Small size and minimal requirements for regiospecific translational activity strongly support th
160 hyll a biosynthesis requires the stereo- and regiospecific two electron reduction of the C7-C8 double
161 pha-arylated ketones, which are converted to regiospecific vinyl triflates and cyclized by a palladiu
162 ctions involving aldoxime ethers) as well as regiospecific when using 2'-aryl groups with meta-substi
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