[EN] PROCESS FOR MAKING AZETIDINE-3-CARBOXYLIC ACID<br/>[FR] PROCEDE DE FABRICATION DE L'ACIDE AZETIDINE-3-CARBOXYLIQUE
申请人:MERCK & CO INC
公开号:WO2004035538A1
公开(公告)日:2004-04-29
The present invention is directed to an improved process for synthesizing azetidine-3-carboxylic acid, comprising triflating diethylbis(hydroxymethyl)malonate followed by azetidine ring-formation by intramolecular cyclization using an amine, decarboxylation to give the mono acid azetidine and hydrogenation to give the title compound. Azetidine-3-carboxylic acid is useful as an intermediate for making certain S1P?1#191/Edg1 receptor agonists, which are immunosupressive agents.
1-((5-aryl-1,2,4-oxadiazol-3-yl) benzyl)azetidine-3-carboxylates and 1-((5-aryl-1,2,4-oxadiazol-3-yl)benzyl) pyrrolidine-3-carboxylates as edg receptor agonists
申请人:Chen Weirong
公开号:US20050245575A1
公开(公告)日:2005-11-03
The present invention encompasses compounds of Formula I: as well as the pharmaceutically acceptable salts and hydrates thereof. The compounds are useful for treating immune mediated diseases and conditions, such as bone marrow, organ and tissue transplant rejection. Pharmaceutical compositions and methods of use are included.
The invention relates to compounds of formula I
and to pharmaceutically acceptable salts, prodrugs, solvates or hydrates thereof. This invention also relates to a method of using such compounds in the treatment of hyperproliferative diseases and autoimmune diseases in mammals, especially humans, and to pharmaceutical compositions containing such compounds.
1-((5-ARYL-1,2,4-OXADIAZOL-3-YL)BENZYL)AZETIDINE-3-CARBOXYLATES AND 1-((5-ARYL-1,2,4-OXADIAZOL-3-YL)BENZYL)PYRROLIDINE-3-CARBOXYLATES AS EDG RECEPTOR AGONISTS