Asymmetric Syntheses via Heterocyclic Intermediates; XIV1. Enantioselective Synthesis of (R)-Serine using L-Valine orO,O-Dimethyl-α-methyldopa as Chiral Auxiliary Reagents
[EN] DIPHENYL SUBSTITUTED CYCLOALKANES<br/>[FR] CYCLOALCANES SUBSTITUÉS PAR DES DIPHÉNYLES
申请人:MERCK & CO INC
公开号:WO2009048547A1
公开(公告)日:2009-04-16
The present invention provides compounds of Formula I which are FLAP inhibitors useful as anti-atherosclerotic, anti-asthmatic, anti-allergic, anti-inflammatory and cytoprotective agents.
Antofine and cryptopleurine derivatives as anticancer agents
申请人:Lee Kuo-Hsiung
公开号:US09216977B2
公开(公告)日:2015-12-22
The present invention provides compounds of Formula (I-IV): compositions containing the same, and methods of use thereof such as for the treatment of cancer.
本发明提供了化合物的公式(I-IV):含有相同化合物的组合物以及其使用方法,例如用于治疗癌症。
Asymmetric Allylboration of α,β-Enals as a Surrogate for the Enantioselective Synthesis of Allylic Amines and α-Amino Acids
作者:P. Veeraraghavan Ramachandran、Thomas E. Burghardt、M. Venkat Ram Reddy
DOI:10.1021/jo048144+
日期:2005.3.1
Optically pure allylic amines have been synthesized from α,β-unsaturated aldehydes via allylboration with (−)-B-allyldiisopinocampheylborane, followed by Overman rearrangement. By incorporating crotyl and alkoxyallylboration, functionalization at δ-position was readily accomplished. By applying this methodology, the synthesis of several chiral α-amino acids has been achieved.
Reactions of carbon nucleophiles with 2,2,3-trisubstituted ethynylaziridines
作者:Brandon T. Kelley、Madeleine M. Joullié
DOI:10.1016/j.tetasy.2013.08.009
日期:2013.10
Carbon nucleophiles were used to open a 2,2,3-trisubstituted ethynylaziridine. A cyanide nucleophile opened the ring at the more substituted carbon, proceeding regioselectively with inversion of configuration. In an attempt to expand upon the scope of the reaction, Normant cuprates were reacted with a 2,2,3-trisubstituted ethynylaziridine. This reaction produced chiral allenes via an anti-S(N)2' pathway. X-ray analysis of a derivative allowed the absolute stereochemistry of the anti-allenes to be assigned as P. Published by Elsevier Ltd.