Tandem Michael addition/isocyanide insertion into the C–C bond: a novel access to 2-acylpyrroles and medium-ring fused pyrroles
作者:Lingjuan Zhang、Xianxiu Xu、Qiu-rong Shao、Ling Pan、Qun Liu
DOI:10.1039/c3ob41793j
日期:——
A new reaction model, tandem Michael addition/formal isocyanide insertion into the acyl C–C bond, has been developed. Thus, a series of 2-acylpyrroles and seven-/eight-membered ring fusedpyrroles were synthesized from the reaction of methyl isocyanides with enones in a single operation.
Angiotensin II antagonizing heterocyclic derivatives
申请人:Fujisawa Pharmaceutical Co., Ltd.
公开号:US05210092A1
公开(公告)日:1993-05-11
The invention concerns compounds of the formula ##STR1## represents a condensed or uncondensed imidazolyl ring and the rest of the variables are defined in the specification. They are angiotensin II antagonists useful for treating hypertension, etc.
NITROGENATED HETEROCYCLIC COMPOUND AND PHARMACEUTICAL COMPOSITION COMPRISING THE SAME
申请人:Toyoshima Takahiro
公开号:US20090306396A1
公开(公告)日:2009-12-10
The present invention relates to novel compounds having a xanthine oxidase inhibitory effect and an uricosuric effect and pharmaceutical compositions comprising the same as an active ingredient. That is, the present invention relates nitrogen-containing heterocyclic compounds represented by the following general formula (I):
wherein Y
1
represents N or C(R
4
); Y
2
represents N or C(R
5
); R
4
and R
5
independently represent an alkyl group, a hydrogen atom etc.; one of R
1
and R
2
represents an optionally substituted aryl group, an alkoxy group or an optionally substituted heterocyclic group; the other of R
1
and R
2
represents a haloalkyl group, a cyano group, a halogen atom etc.; and R
3
represents a 5-tetrazolyl group or a carboxy group, and pharmaceutically acceptable salts thereof, and pharmaceutical compositions comprising the same as an active ingredient.