Double Sonogashira reactions on dihalogenated aminopyridines for the assembly of an array of 7-azaindoles bearing triazole and quinoxaline substituents at C-5: Inhibitory bioactivity against Giardia duodenalis trophozoites
摘要:
The synthesis of 2,3,5-trisubstituted 7-azaindoles as well as 2,5-disubstituted 7-azaindoles from 3,5-dihalogenated 2-aminopyridines is outlined. Using a double Sonogashira coupling reaction on 2-amino-3,5-diiodopyridine followed by the Cacchi reaction the synthesis of 2,3,5-trisubstituted 7-azaindoles was accomplished. In addition, using two sequential Sonogashira coupling reactions on 2-amino-5-bromo-3-iodopyridine and a potassium t-butoxide mediated ring closure reaction resulted in the assembly of 2,5-disubstituted 7-azaindoles. The 5-alkynyl substituent of the azaindole was easily converted into both quinoxaline and triazole substituents, the latter utilizing an alkyne-azide cycloaddition reaction. Some of these azaindole derivatives showed very promising biological activity against the gastrointestinal protozoal parasite Giardia duodenalis. (C) 2015 Elsevier Ltd. All rights reserved.
Regioselective synthesis of substituted pyrrolopyridines based on Pd(II)-mediated cross coupling and base induced heteroannulation
摘要:
Novel pyrrolopyridines have been synthesized by an efficient, regioselective and catalytic method from commercially available and inexpensive 3-aminopyridine or 2-aminopyridine. (c) 2007 Elsevier Ltd. All rights reserved.
Disclosed are compounds of Formula (I):
useful for treatment of autoimmune and inflammatory diseases associated with IL-2 inhibition via modulation of calcium release-activated calcium (CRAC) channels. Also disclosed are methods of making and using the compounds for treatment of diseases associated with CRAC channels.
COMPOUNDS AND METHODS FOR KINASE MODULATION, AND INDICATIONS THEREFOR
申请人:Plexxikon Inc.
公开号:US20170158690A1
公开(公告)日:2017-06-08
Disclosed are compounds of Formula I:
or a pharmaceutically acceptable salt, a solvate, a tautomer, an isomer or a deuterated analog thereof, wherein Z
2
, Z
3
, and Z
5
are as described herein, compositions thereof, and uses thereof.
inhibitors potently inhibit the signaling pathway of PI3K/AKT/mTOR, which provides a promising new approach for the molecularly targeted cancer therapy. In this work, a novel series of 7-azaindole scaffold derivatives was discovered by the fragment-based growing strategy. The structure–activity relationship profiles identified that the 7-azaindole scaffold derivatives exhibit potentactivity against PI3K