Process for the preparation of α-aminosubstituted carboxylic acid amides
申请人:Merck Patent Gesellschaft
公开号:US07166720B2
公开(公告)日:2007-01-23
Hydroxy-imino derivatives of formula IIb are disclosed,
in which R and R1 have the meanings given in the description.
公开了式IIb的羟基亚胺衍生物,其中R和R1具有描述中给出的含义。
PROCESS FOR THE PREPARATION OF ALPHA-AMINOSUBSTITUTED CARBOXYLIC ACID AMIDES
申请人:Merck Patent GmbH
公开号:EP1345908A2
公开(公告)日:2003-09-24
US7053211B2
申请人:——
公开号:US7053211B2
公开(公告)日:2006-05-30
US7166720B2
申请人:——
公开号:US7166720B2
公开(公告)日:2007-01-23
[EN] PROCESS FOR THE PREPARATION OF alpha -AMINOSUBSTITUTED CARBOXYLIC ACID AMIDES<br/>[FR] PROCEDE DE PREPARATION D'AMIDES D'ACIDES CARBOXYLIQUES DOLLAR G(A)-AMINOSUBSTITUES
申请人:MERCK PATENT GMBH
公开号:WO2002051813A2
公开(公告)日:2002-07-04
The invention relates to a process for the preparation of α-aminosubstituted carboxylic acid amide compounds and/or their salts comprising reacting a carboxylic acid amine of a primary amine with a nitrosylating agent in the presence of a base followed by hydrolysis to give a hydroxy imino derivative followed by hydrogenation and if necessary converting a base or acid of the α-aminosubstituted carboxylic acid amine into one of its salts.