[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.
[EN] 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<br/>[FR] 1-((5-ARYL-1,2,4-OXADIAZOL-3-YL)BENZYL)AZETIDINE-3-CARBOXYLATES ET 1-((5-ARYL-1,2,4-OXADIAZOL-3-YL)BENZYL)PYRROLIDINE-3-CARBOXYLATES UTILISES EN TANT QU'AGONISTES DU RECEPTEUR EDG
Discovery of Potent 3,5-Diphenyl-1,2,4-oxadiazole Sphingosine-1-phosphate-1 (S1P<sub>1</sub>) Receptor Agonists with Exceptional Selectivity against S1P<sub>2</sub> and S1P<sub>3</sub>
作者:Zhen Li、Weirong Chen、Jeffrey J. Hale、Christopher L. Lynch、Sander G. Mills、Richard Hajdu、Carol Ann Keohane、Mark J. Rosenbach、James A. Milligan、Gan-Ju Shei、Gary Chrebet、Stephen A. Parent、James Bergstrom、Deborah Card、Michael Forrest、Elizabeth J. Quackenbush、L. Alexandra Wickham、Hugo Vargas、Rose M. Evans、Hugh Rosen、Suzanne Mandala
DOI:10.1021/jm0503244
日期:2005.10.1
A class of 3,5-diphenyl-1,2,4-oxadiazole based compounds have been identified as potent sphingosine-1-phosphate-1 (S1P(1)) receptor agonists with minimal affinity for the S1P(2) and S1P3 receptor subtypes. Analogue 26 (S1P(1) IC50 = 0.6 nM) has an excellent pharmacokinetics profile in the rat and dog and is efficacious in a rat skin transplant model, indicating that S1P(3) receptor agonism is not a component of inummosuppressive efficacy.
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