Fragment Couplings via CO<sub>2</sub> Extrusion–Recombination: Expansion of a Classic Bond-Forming Strategy via Metallaphotoredox
作者:Chi “Chip” Le、David W. C. MacMillan
DOI:10.1021/jacs.5b08304
日期:2015.9.23
bond-forming reaction, can subsequently undergo metal insertion-decarboxylation-recombination to generate Csp(2)-Csp(3) bonds when subjected to metallaphotoredox catalysis. In this embodiment the conversion of a wide variety of mixedanhydrides (formed in situ fromcarboxylic acids and acyl chlorides) to fragment-coupled ketones is accomplished in good to high yield. A three-step synthesis of the medicinal
CONSTRUCTION AND SCREENING OF SOLUTION-PHASE DERIVED LIBRARY OF FENBUFEN AND ETHACRYNIC ACID
申请人:Yu Chung-Shan
公开号:US20110306668A1
公开(公告)日:2011-12-15
A process for synthesizing and screening solution phase derived libraries of fenbufen and ethacrynic acid is provided in the present invention. Compounds in the present invention having cytotoxicities are useful for a variety of therapeutic applications.
The present disclosure is generally directed to antiviral compounds, and more specifically directed to compounds which can inhibit the function of the NS5A protein encoded by Hepatitis C virus (HCV), compositions comprising such compounds, and methods for inhibiting the function of the NS5A protein.
Acylation of α-aminoalkyl- copper and cuprate reagents with acid chlorides: Improved yields with soluble copper (I) salts
作者:R.Karl Dieter、Ram R. Sharma、Wendy Ryan
DOI:10.1016/s0040-4039(96)02411-2
日期:1997.2
alpha-Aminoalkylcopper reagents prepared from soluble CuX . 2LiCl give modest to good yields of alpha-aminoketones upon reaction with acid chlorides. Higher yields are generally obtained with CuCl . 2LiCl than with CuCN . 2LiCl. Improved yields can be obtained by utilization of cuprate reagents prepared from CuCN . 2LiCl and 2.0 equivalents of alpha-lithiocarbamates. (C) 1997, Elsevier Science Ltd.