Benzo(f)isoquinoline compounds useful as calcium entry blockers
申请人:Merck & Co., Inc.
公开号:US04670443A1
公开(公告)日:1987-06-02
Benzo(f)isoquinoline compounds, particularly, penta- and tetrahydrobenzo(f)isoquinoline dicarboxylic acid compounds, their preparation and their use as calcium entry blockers are disclosed.
HARTMAN, GEORGE D.;PHILLIPS, BRIAN T.;SPRINGER, JAMES P.;HIRSHFIELD, JORD+, J. HETEROCYCL. CHEM., 24,(1987) N 5, 1397-1399
作者:HARTMAN, GEORGE D.、PHILLIPS, BRIAN T.、SPRINGER, JAMES P.、HIRSHFIELD, JORD+
DOI:——
日期:——
HARTMAN, GEORGE D.;PHILLIPS, BRIAN T.
作者:HARTMAN, GEORGE D.、PHILLIPS, BRIAN T.
DOI:——
日期:——
US4670443A
申请人:——
公开号:US4670443A
公开(公告)日:1987-06-02
Intramolecular cyclization of 4-aryl-1,4-dihydropyridine acetals
作者:George D. Hartman、Brian T. Phillips、James P. Springer、Jordan Hirshfield
DOI:10.1002/jhet.5570240533
日期:1987.9
the ortho position is described. These compounds undergo iminium ion mediated cyclization when treated with titaniumtetrachloride or gaseous hydrogen chloride. Mechanistically, cyclization utilizes attack of C-3 of the dihydropyridine on the electrophilic species generated from complexation of the acetal. This methodology highlights opportunities for the construction of novel conformationally constrained