Synthesis of small molecule inhibitors of the orphan nuclear receptor steroidogenic factor-1 (NR5A1) based on isoquinolinone scaffolds
摘要:
Three synthetic routes were developed for structure-activity relationship (SAR) studies of HTS-derived isoquinolinone inhibitor probes for the orphan nuclear receptor steroidogenic factor-1 (NR5A1). Among the new analogs reported herein, 31 and 32 have improved potency, lower cellular toxicity, and improved selectivity compared to the initial HTS-derived leads 1 and 2. (c) 2008 Elsevier Ltd. All rights reserved.
starting with aldehydes 3, in good to excellent yield is described herein. This novel approach was carried out by the Henry reaction of 3 with NH4OAc and nitroalkanes (MeNO2 or EtNO2), aerobicWacker-type oxidation of the resulting nitroalkenes 4, followed by K2CO3-promoted intramolecular Michael cyclization in modest to good yields.
本文描述了从醛3开始以良好或优异的产率向异色酮6合成的途径。这种新方法是通过3与NH 4 OAc和硝基烷(MeNO 2或EtNO 2)的亨利反应,所得硝基烯烃4的好氧Wacker型氧化,然后由K 2 CO 3促进的分子内迈克尔环化而进行的。高产。
Construction of Nitrated Benzo[3.3.1]bicyclic Acetal/Ketal Core via Nitration of <i>o</i>-Carbonyl Allylbenzenes
作者:Chieh-Kai Chan、Yu-Lin Tsai、Meng-Yang Chang
DOI:10.1021/acs.orglett.7b00245
日期:2017.3.17
Intramolecular annulation of o-carbonyl allylbenzenes was achieved to construct novel nitrated [6,6,6]tricycles having an acetal or ketal motif in good yields. The expeditious one-step nitration route provides 4 or 5 new bond formations, including 2 or 3 C–N bonds and 2 C–O bonds. The structural framework of benzobicycle [3.3.1] is confirmed by X-ray crystallographic analysis. A plausible mechanism