Tetramic acid analogs of pulvinic acid having anti-arthritic activity are prepared by treatment of the corresponding tetramic acid lactones with an alkali metal lower alkoxide.
N-Heterocyclic pulvinic acid amides having antiarthritic activity are prepared by treating the corresponding pulvinic acid with a heterocyclic amine.
通过将相应的脉脉酸与杂环胺处理,制备具有抗关节炎活性的N-杂环脉脉酸酰胺。
Ester derivatives of pulvinic acid
申请人:SmithKline Corporation
公开号:US03944571A1
公开(公告)日:1976-03-16
Pharmaceutical compositions having anti-arthritic activity comprising an ester derivative of pulvinic acid and methods of producing anti-arthritic activity by administering internally said compositions. Certain of the pulvinic acid derivatives are novel compounds per se.
Addition of Acetone towards β-Cyano-α-oxoesters Catalyzed by L-Proline: Dynamic Kinetic Resolution
作者:Yajun Wang、Yawen Zhang
DOI:10.1002/cjoc.201090219
日期:——
β‐Cyano‐α‐oxoesters were found to undergo asymmetric aldol addition reaction with acetone in the presence of 10 mol% of L‐proline. With the racemic starting material, dynamickineticresolution (DKR) was achieved in quantitative yields with good diastreroselectivity of up to 85:15 dr and excellent ee up to 99% for the major diastereomer.
Compositions comprising tetramic acid analogs of pulvinic acid and
申请人:SmithKline Corporation
公开号:US03984559A1
公开(公告)日:1976-10-05
Pharmaceutical compositions comprising tetramic acid analogs of pulvinic acid and methods of combating arthritis by administration of these compositions are disclosed.