A new synthesis of FPL 64176 and analogues: The discovery of benzoylpyrrole calcium channel activators with low nanomolar potency
摘要:
Heavy metal assisted halogen displacement on 2-halobenzoylpyrroles (2 and 3) leads to a simple synthesis of FPL 64176 (1) and a variety of analogues (4-10). The difluoro derivative (4), EC50 1nM, and the amino linked analogue (7), EC50 2.7nM, are presently the most potent calcium channel activators known.
An extremely short synthesis of benzoylpyrrole-type calcium channel activators
作者:Christopher R. Dalton、John M. Kane、David Rampe
DOI:10.1016/0040-4039(92)89013-3
日期:1992.9
Friedel-Crafts acylation of methyl 2,5-dimethylpyrrole-3-carboxylate with 2-chloromethylbenzoyl chloride generated the corresponding 4-(2-chloromethylbenzoyl)pyrrole which was reacted in situ with benzene and aluminum chloride to yield the novel calcium channel activator FPL 64176.