Synthesis of Photoaffinity Probes for Heme-Containing Proteins
摘要:
Aryldiazenes with a second, photoactivatable, azide substituent on the aryl ring have been synthesized as active site probes for heme proteins of unknown active site structure. The probes include most of the possible isomers of the phenyl, naphthyl, and biphenyl ring systems. A selection of the probes has been shown to react with the model protein P450(cam) to give (arylazido)iron (FeArN3) complexes, a prerequisite for subsequent affinity labeling of the protein.
Synthesis of Photoaffinity Probes for Heme-Containing Proteins
摘要:
Aryldiazenes with a second, photoactivatable, azide substituent on the aryl ring have been synthesized as active site probes for heme proteins of unknown active site structure. The probes include most of the possible isomers of the phenyl, naphthyl, and biphenyl ring systems. A selection of the probes has been shown to react with the model protein P450(cam) to give (arylazido)iron (FeArN3) complexes, a prerequisite for subsequent affinity labeling of the protein.
A convenient method for the synthesis of 2-arylazocarboxylates from 2-arylhydrazinecarboxylates by aerobicoxidation with ironphthalocyanine is described. The reaction is applicable to oxidative activation of 1-acyl-2-phenylhydrazines. Some preliminary experiments suggest Michaelis–Menten kinetics and participation of radical species in the reaction mechanism.
[EN] PROCESS FOR THE PREPARATION OF RETIGABINE OF THE FORMULA I AND PHARMACEUTICALLY ACCEPTABLE SALTS THEREOF<br/>[FR] PROCÉDÉ DE PRÉPARATION DE RÉTIGABINE DE FORMULE I ET DE SES SELS PHARMACEUTIQUEMENT ACCEPTABLES
申请人:ARCH PHARMALABS LTD
公开号:WO2013011518A1
公开(公告)日:2013-01-24
The invention relates to process for the preparation of 2-amino-4-(4- fluorobenzylamino)-l-ethoxycarbonylaminobenzene generically known as Retigabine of the formula (I) and its pharmaceutically acceptable salts e.g. Formula IA, particularly to the modification over the prior art processes-I and II disclosed therein in US5384330. The modifications are depicted in the scheme I and scheme II respectively. Disclosed herein are also the novel processes for the preparation of intermediates of formulae M, N and O of the process-I and of formulae R, S, T of process-II, those are used for preparation of Retigabine of the formula I and its pharmaceutically acceptable salts thereof.
Petersen et al., Angewandte Chemie, 1955, vol. 67, p. 217,219
作者:Petersen et al.
DOI:——
日期:——
Synthesis of Photoaffinity Probes for Heme-Containing Proteins
作者:Richard A. Tschirret-Guth、Paul R. Ortiz de Montellano
DOI:10.1021/jo981095e
日期:1998.12.1
Aryldiazenes with a second, photoactivatable, azide substituent on the aryl ring have been synthesized as active site probes for heme proteins of unknown active site structure. The probes include most of the possible isomers of the phenyl, naphthyl, and biphenyl ring systems. A selection of the probes has been shown to react with the model protein P450(cam) to give (arylazido)iron (FeArN3) complexes, a prerequisite for subsequent affinity labeling of the protein.