Trialkyl Methanetricarboxylate as Dialkyl Malonate Surrogate in Copper-Catalyzed Enantioselective Propargylic Substitution
摘要:
The first copper-catalyzed enantioselective propargylation of trialkyl methantricarboxylate with propargylic alcohol derivatives was developed. The tricarboxylate unit in the obtained adducts could be easily transformed into a malonate moiety by treating with in situ generated NaOEt in excellent yield without racemization.
Practical Asymmetric Conjugate Alkynylation of Meldrum’s Acid-Derived Acceptors: Access to Chiral β-Alkynyl Acids
作者:Sheng Cui、Shawn D. Walker、Jacqueline C. S. Woo、Christopher J. Borths、Herschel Mukherjee、Maosheng J. Chen、Margaret M. Faul
DOI:10.1021/ja909105s
日期:2010.1.20
The enantioselective conjugate addition of alkynyl nucleophiles has been a long-standing challenge in synthetic chemistry. This paper describes a highly practical asymmetricconjugatealkynylation of Meldrum's acid-derived acceptors using cinchonidine (<$100/kg) as the chiral mediator. The process provides practical access to chiral beta-alkynyl acids. Noteworthy attributes of the method are its broad
[EN] AGONISTS AND ANTAGONISTS OF THE S1P5 RECEPTOR, AND METHODS OF USES THEREOF<br/>[FR] AGONISTES ET ANTAGONISTES DU RÉCEPTEUR S1P5, ET LEURS PROCÉDÉS D'UTILISATION
申请人:ABBOTT LAB
公开号:WO2010093704A1
公开(公告)日:2010-08-19
Disclosed are compounds that are agonists or antagonists of the S1P5 receptor, compositions comprising said compounds, and methods of using said compounds and compositions. In certain embodiments, said compounds are 1-benzylazetidine-3-carboxylic acid derivatives. In certain embodiments, said methods relate to the treatment of neuropatic pain and/or a neurodegenerative disorder. In certain embodiments, said compounds may be used in combination with a second therapeutic agent.
[EN] SUBSTITUTED ISOXAZOLE AMIDE COMPOUNDS AS INHIBITORS OF STEAROYL-COA DESATURASE 1 (SCD1)<br/>[FR] COMPOSÉS D'AMIDE D'ISOXAZOLE SUBSTITUÉS EN TANT QU'INHIBITEURS DE STÉAROYL-COA DÉSATURASE 1 (SCD1)
申请人:HOFFMANN LA ROCHE
公开号:WO2014086704A1
公开(公告)日:2014-06-12
The invention is concerned with a compound of formula (I) and pharmaceutically acceptable salts thereof. In addition, the present invention relates to methods of manufacturing and using the compound of formula (I) as well as pharmaceutical compositions containing such compounds. The compound of formula (I) are SCD1 inhibitors and may be useful in treating cancer.