[EN] (3,4-DISUBSTITUTED)PROPANOIC CARBOXYLATES AS S1P (EDG) RECEPTOR AGONISTS [FR] CARBOXYLATES PROPANOIQUES 3,4-DISUSBSTITUES UTILISES EN TANT QU'AGONISTES DU RECEPTEUR S1P (EDG)
[EN] (3,4-DISUBSTITUTED)PROPANOIC CARBOXYLATES AS S1P (EDG) RECEPTOR AGONISTS [FR] CARBOXYLATES PROPANOIQUES 3,4-DISUSBSTITUES UTILISES EN TANT QU'AGONISTES DU RECEPTEUR S1P (EDG)
Improved synthesis of sterically encumbered heteroaromatic biaryls from aromatic β-keto esters
作者:Brandon R. Rosen、Ehesan Ul Sharif、Dillon H. Miles、Nicholas S. Chan、Manmohan R. Leleti、Jay P. Powers
DOI:10.1016/j.tetlet.2020.151855
日期:2020.5
A protocol for the synthesis of hindered 4-aryl 2-aminopyrimidines from β–keto esters is described. The process employs trifluoroethanol as an essential additive to promote the guanidine condensation reaction, enabling the synthesis of 25 aryl- and heteroaryl substituted aminopyrimidines in good yields and high purities with no column chromatography. The conditions described herein are readily scalable
描述了由β-酮酸酯合成受阻4-芳基2-氨基嘧啶的方法。该方法采用三氟乙醇作为促进胍缩合反应的必要添加剂,无需柱色谱法即可以高收率和高纯度合成25个芳基和杂芳基取代的氨基嘧啶。本文所述的条件易于扩展,并且已用于临床A 2a / A 2b R拮抗剂AB928的大规模合成。
(3,4-Disubstituted)Propanoic Carboxylates as Sip (Edg) Receptor Agonists
申请人:Colandrea Vincent J.
公开号:US20080249093A1
公开(公告)日:2008-10-09
The present invention encompasses compounds of Formula I:
as well as the pharmaceutically acceptable salts thereof. The compounds are S1P
1
/Edg1 receptor agonists and thus have immunosuppressive, anti-inflammatory and hemostatic activities by modulating leukocyte trafficking, sequestering lymphocytes in secondary lymphoid tissues, and enhancing vascular integrity. The invention is also directed to pharmaceutical compositions containing such compounds and methods of treatment or prevention.
(3,4-disubstituted)propanoic carboxylates as S1P (Edg) receptor agonists
申请人:Merck & Co., Inc.
公开号:US07605171B2
公开(公告)日:2009-10-20
The present invention encompasses compounds of Formula I:
as well as the pharmaceutically acceptable salts thereof. The compounds are S1P1/Edg1 receptor agonists and thus have immunosuppressive, anti-inflammatory and hemostatic activities by modulating leukocyte trafficking, sequestering lymphocytes in secondary lymphoid tissues, and enhancing vascular integrity. The invention is also directed to pharmaceutical compositions containing such compounds and methods of treatment or prevention.