Discovery of 2-(4-sulfonamidophenyl)-indole 3-carboxamides as potent and selective inhibitors with broad hepatitis C virus genotype activity targeting HCV NS4B
摘要:
A novel series of 2-(4-sulfonamidophenyl)-indole 3-carboxamides was identified and optimized for activity against the HCV genotype 1b replicon resulting in compounds with potent and selective activity. Further evaluation of this series demonstrated potent activity across HCV genotypes 1a, 2a and 3a. Compound 4z had reduced activity against HCV genotype 1b replicons containing single mutations in the NS4B coding sequence (F98C and V105M) indicating that NS4B is the target. This novel series of 2-(4-sulfonamidophenyl)-indole 3-carboxamides serves as a promising starting point for a pan-genotype HCV discovery program. (C) 2015 Elsevier Ltd. All rights reserved.
C9-stereochemistries. A new radical-based strategy was devised to construct the pentacyclic skeletons of 1 and 2. An oxacycle-fused A-ring and enyne fragments were coupled to produce radical precursors 4a–4c with different C7-oxygen functionalities. The bridgehead tertiary bromide of 4a–4c participated in a radical cascade reaction with the three unsaturated bonds to cyclize the C9-diastereomeric BCD-rings.
two active methine compounds with primary or secondary alcohols in the presence of new Mitsunobu-type reagents afforded alkylation products in excellent (with primary alcohols) to fair yields (with secondary alcohol) except one case. It demonstrates that the new reagents, especially cyanomethylene-trimethylphosphorane, are excellent mediators for this type of alkylation. The double alkylation of an
The present invention relates to compounds of formula I
wherein G and R
1
to R
5
and R
12
are as defined in the description and claims, and pharmaceutically acceptable salts thereof. The compounds are useful for the treatment and/or prevention of diseases which are associated with the modulation of H3 receptors.
[EN] PROCESSES OF PREPARING A JAK1 INHIBITOR AND NEW FORMS THERETO<br/>[FR] PROCÉDÉS DE PRÉPARATION D'UN INHIBITEUR DE JAK1 ET NOUVELLES FORMES ASSOCIÉES
申请人:INCYTE CORP
公开号:WO2015168246A1
公开(公告)日:2015-11-05
This invention relates to processes for preparing a JAKl inhibitor having Formula la: as well as new forms of the inhibitor.