Process for the preparation of hydroxamic acid derivatives
申请人:Hoffmann-La Roche Inc.
公开号:US06452010B1
公开(公告)日:2002-09-17
The present invention provides an improved process for preparing an hydroxycarbamoyl derivative of a carboxylic acid using a hydroxylammonium salt of a carboxylic acid as a reagent.
本发明提供了一种改进的制备羧酸的羟基氨基甲酰衍生物的方法,使用羧酸的羟胺盐作为试剂。
Verfahren zur Herstellung von chiralen Bernsteinsäurederivaten
申请人:F. HOFFMANN-LA ROCHE AG
公开号:EP0911324A1
公开(公告)日:1999-04-28
Die vorliegende Erfindung betrifft ein Verfahren zur Herstellung von chiralen Bernsteinsäurederivaten der Formel (I)
worin R1 (C1-C6)Alkyl oder Benzyl ist, und die darin verwendeten neuen Zwischenverbindungen.
Practical approaches to the matrix metalloproteinase inhibitor Trocade® (Ro 32-3555) and to the TNF-α converting enzyme inhibitor Ro 32-7315
作者:Hans Hilpert
DOI:10.1016/s0040-4020(01)00720-7
日期:2001.9
Stereoselective methods were found to efficiently prepare 2- and 3-substituted succinates with anti configuration. In the synthesis of Trocade®1, the hydantoinmethyl residue was introduced by alkylation of the non-chelated potassium enolate 19 with the bromomethyl hydantoin 9 to give a 92:8 mixture favouring the 2,3-anti configurated succinate 18. The preparation of TNF-α converting enzyme (TACE) inhibitor