[EN] COMPOUNDS FOR INHIBITION OF ALPHA 4β7 INTEGRIN<br/>[FR] COMPOSÉS POUR INHIBITION DE L'INTÉGRINE ALPHA 4β7
申请人:GILEAD SCIENCES INC
公开号:WO2020092401A1
公开(公告)日:2020-05-07
The present disclosure provides a compound of Formula (I); or a pharmaceutically acceptable salt thereof as described herein. The present disclosure also provides pharmaceutical compositions comprising a compound of Formula (I), processes for preparing compounds of Formula (I), and therapeutic methods for treating inflammatory disease.
The compounds of formula (I) wherein R1, R2, R21, R22, R23, R24, Y and R3 have the meanings as given in the description, the salts thereof, and the stereoisomers of the compounds and the salts thereof are effective inhibitors of the type 5 phosphodiesterase.
The compounds of Formula (I),
wherein R1, R2, R21, R22, R23, R24, Y and R3 have the meanings as given in the description, the salts thereof, the stereoisomers of the compounds and the salts thereof are effective inhibitors of the type 5 phosphodiesterase.
The compounds of Formula (I),
wherein R1, R2, R21, R22, R23, R24, Y and R3 have the meanings as given in the description, the salts thereof, the stereoisomers of the compounds and the salts thereof are effective inhibitors of the type 5 phosphodiesterase.
<i>para</i>-Selective dearomatization of phenols by I(<scp>i</scp>)/I(<scp>iii</scp>) catalysis-based fluorination
作者:Timo Stünkel、Kathrin Siebold、Daichi Okumatsu、Kazuki Murata、Louise Ruyet、Constantin G. Daniliuc、Ryan Gilmour
DOI:10.1039/d3sc05952a
日期:——
The regio- and enantio-selective dearomatization of phenols has been achieved by I(I)/I(III) catalysis enabled fluorination. The process is highly para-selective, guiding the fluoride nucleophile to the distal C4 position of the substrate to generate fluorinated cyclohexadienones in an operationally simple manner. Extensive optimization has revealed key parameters that orchestrate enantioselectivity
通过 I( I )/I( III ) 催化氟化实现了苯酚的区域和对映选择性脱芳构化。该过程具有高度对位选择性,将氟化物亲核试剂引导至底物的远端C4位置,以操作简单的方式生成氟化环己二酮。广泛的优化揭示了在这一具有历史挑战性的转变中协调对映选择性的关键参数。公开了一系列不同取代的底物(20 个例子,高达 92:8 er),并且该反应显示出的效率可与羟基化化学的当前技术水平相媲美:这提供了一个制备平台,使 OH 到 F 的生物等排作用能够被探索。最后,公开了该产品在获得具有五个连续立构中心的密集功能化环状支架方面的用途以及晶体学分析,以揭示氟-羰基非共价相互作用。