[EN] FLUORESCENTLY LABELED MOLECULES CONTAINING MODIFIED TRYPTOPHAN<br/>[FR] MOLÉCULES MARQUÉES PAR FLUORESCENCE CONTENANT DU TRYPTOPHANE MODIFIÉ
申请人:SEED RES AND DEV LLC
公开号:WO2016133913A1
公开(公告)日:2016-08-25
The present disclosure relates to new fluorescent molecules that contain N-alkylated or N-acylated tryptophan and do not substantially quench fluorescent labels attached to the molecules, and the use of such molecules in preparing and studying various compounds, such as substrates and inhibitors for assays of enzymes (e.g., caspases, such as caspase-1 which is an important enzyme in inflammation). An enzyme substrate or enzyme inhibitor that contains a modified tryptophan and fluorescent label as disclosed herein can be studied without loss of signal by Förster quenching. By reducing or eliminating this quenching, more useful labeled molecules with improved properties for assay development can be prepared.
Method for the N-acylation of aminocarboxylic acids
申请人:Dynamit Nobel Aktiengesellschaft
公开号:US04380646A1
公开(公告)日:1983-04-19
A process is disclosed for the prparation of an acylated aminocarboxylic acid which comprises contacting an aminocarboxylic acid, its alkali metal or alkaline earth metal salt with a low alkyl carboxylic acid ester of the formula R.sub.1 -CO-O-R.sub.2, wherein R.sub.1 represents hydrogen or a straight-chain or branched or cyclic hydrocarbon moiety of 1 to 30 carbon atoms, which can be substituted if desired, and wherein R.sub.2 represents a straight-chain, branched or cyclic hydrocarbon moiety of 1 to 8 carbon atoms in the presence of an alkali metal or alkaline earth metal alcoholate.