钯催化的羰基化反应是合成有价值分子的有效方法。然而,通过经典的低价钯催化实现具有优异产率和化学选择性、区域选择性和对映选择性的羰基化是极具挑战性的。在此,我们描述了使用高价钯催化策略并使用手性亚砜膦 (SOP) 配体的对映选择性羰基化反应。这种双氨基羰基化反应开始于氨基甲酰钯 (II) 物种的形成,它与环状二芳基碘盐进行对映选择性氧化加成,生成钯 (IV) 中间体,然后进行第二次 CO 插入和还原消除。该机制已通过实验和计算研究得到说明。
[EN] CINNOLINE DERIVATIVES AS AS BTK INHIBITORS<br/>[FR] DÉRIVÉS DE CINNOLINE EN TANT QU'EN TANT QU'INHIBITEURS DE LA BTK
申请人:TAKEDA PHARMACEUTICAL
公开号:WO2013148603A1
公开(公告)日:2013-10-03
Disclosed are compounds of Formula 1, and pharmaceutically acceptable salts thereof, wherein R1, R2, R3, R4, and R5 are defined in the specification. The compounds are inhibitors of Bruton's tyrosine kinase (BTK). This disclosure also relates to materials and methods for preparing compounds of Formula 1, to pharmaceutical compositions which contain them, and to their use for treating diseases, disorders or conditions associated with BTK.
Antifolate and antibacterial activities of 5-substituted 2,4-diaminoquinazolines
作者:Neil V. Harris、Christopher Smith、Keith Bowden
DOI:10.1021/jm00163a067
日期:1990.1
observed qualitative structure-activity relationships is proposed. The inhibitory activities of the compounds against the growth of intact bacterial cells in vitro closely parallel those for the inhibition of the isolated bacterial enzymes, suggesting that their antifolate action is responsible for their antibacterial effects. Five of the compounds were tested for their ability to cure a systemic E
Substituted benzimidazoles, and methods of use thereof, for the inhibition of HIV reverse transcription and for the treatment of HIV infection
申请人:The United States of America as represented by the Department of Health and Human Services
公开号:US06369235B1
公开(公告)日:2002-04-09
The present invention provides compositions and methods for the treatment of HIV infection. In particular, the present invention provides non-nucleoside inhibitors of reverse transcriptase (RT), as well as methods to treat HIV infection using these non-nucleoside inhibitors of RT. In preferred embodiments, the present invention provides a novel class of substituted benzimidazoles, effective in the inhibition of human immunodeficiency virus (HIV) RT.