The present invention provides compounds of Formula (I) and (II), or a pharmaceutically acceptable salts thereof,
where R
53
, R
54
, p, q, and n are as defined herein. The compounds of the present invention have been found to be useful as 17α-hydroxylase/C
17,20
-lyase inhibitors.
Direct synthesis of 2-/3-(trifluoromethyl)thiochroman-4-ones: Superacid-induced tandem alkylation-cyclic acylation of benzenethiols using 2-/3-(trifluoromethyl)acrylic acid
作者:G.K. Surya Prakash、Arjun Narayanan、Archith Nirmalchandar、Habiba Vaghoo、Farzaneh Paknia、Thomas Mathew、George A. Olah
DOI:10.1016/j.jfluchem.2016.08.013
日期:2017.4
scaffolds in medicinal chemistry and are rare in the chemical literature, one-pot synthesis of 2-/3-(trifluoromethyl)thiochroman-4-ones was attempted. Direct access to 2-/3-(trifluoromethyl)thiochroman-4-ones was achieved by a tandem alkylation-cyclic acylation process promoted by superelectrophilic activation of 2-/3-(trifluoromethyl)acrylic acid in superacidic trifluoromethanesulfonic acid under microwave-assisted
The effect of fluoromethyl groups on the diastereoselectivity in the electrophilic alkylation is described. In particular, the electrophilic alkylation of enolates with a trifluoromethyl group was proceeded with highly diastereofacial selectivity based on the steric and/or electrostatic effect of substituent with strong electron withdrawing.
[EN] 1, 3-DISUBSTITUTED IMIDAZOLIDIN-2-ONE DERIVATIVES AS INHIBITORS OF CYP 17<br/>[FR] DÉRIVÉS D'IMIDAZOLIDIN-2-ONE 1,3-DISUBSTITUÉS EN TANT QU'INHIBITEURS DE CYP 17
申请人:NOVARTIS AG
公开号:WO2010149755A1
公开(公告)日:2010-12-29
The present invention provides compounds of Formula (I) and (II), or a pharmaceutically acceptable salts thereof, where R53, R54, p, q and n are as defined herein. The compounds of the present invention have been found to be useful as 17α-hydroxylase/C17,20-lyase inhibitors.