Direct Synthesis of Fluorinated Heteroarylether Bioisosteres
作者:Qianghui Zhou、Alessandro Ruffoni、Ryan Gianatassio、Yuta Fujiwara、Eran Sella、Doron Shabat、Phil S. Baran
DOI:10.1002/anie.201300763
日期:2013.4.2
direction: A modular synthesis of reagents (e.g. sodium difluoroethylsulfinate) that can be used for the direct incorporation of difluoroalkyl groups onto heterocycles is reported. The scope and generality of the incorporation of difluoroalkyl groups is exemplified with the difluoroethyl group and a proof of principle is shown for a general synthesis of fluorinated heteroarylether bioisosteres.
The invention provides methods of synthesizing a viral protease inhibitor in high yield, without using expensive catalysts or challenging reaction conditions.
本发明提供了一种高产合成病毒蛋白酶抑制剂的方法,而不需要使用昂贵的催化剂或具有挑战性的反应条件。
MACROCYCLIC HEPATITIS C SERINE PROTEASE INHIBITORS
申请人:Chen Hui-Ju
公开号:US20120101031A1
公开(公告)日:2012-04-26
The present invention relates to novel macrocyclic compounds and methods of treating a hepatitis C infection in a subject in need of such therapy with said macrocyclic compounds. The present invention further relates to pharmaceutical compositions comprising the compounds of the present invention, or pharmaceutically acceptable salts, esters, or prodrugs thereof, in combination with a pharmaceutically acceptable carrier or excipient.
by hypervalent-iodine-based reagents was developed. To facilitate the final oxidative step, [bis(trifluoroacetoxy)iodo]benzene (PIFA) was employed as an oxidant. Moreover, a one-pot protocol for this transformation was realized by generating the difluoroalkylation reagent in situ. The readily accessible reagents and the mild reaction conditions make this reaction an alternative and practical strategy
开发了一种可见光诱导的高价碘基试剂对喹喔啉-2(1 H )-酮的自由基二氟烷基化反应。为了促进最终的氧化步骤,使用[双(三氟乙酰氧基)碘]苯(PIFA)作为氧化剂。此外,通过原位生成二氟烷基化试剂实现了这种转化的一锅法方案。易于获得的试剂和温和的反应条件使该反应成为合成C(3)-二氟烷基化喹喔啉-2(1 H )-酮的替代且实用的策略。