Calcium antagonist

Drug – bio-affecting and body treating compositions – Designated organic active ingredient containing – Having -c- – wherein x is chalcogen – bonded directly to...

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514333, 546270, 546256, 546321, C07D491056, C07D21190, A61K 31455

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active

047229314

ABSTRACT:
The invention concerns a compound of the formula ##STR1## and salts thereof resulting from addition with pharmaceutically acceptable mineral or organic acid, wherein R is an alkylenedioxy group substituted at the 2',3'-position, and R.sub.1 and R.sub.2 are selected from the group consisting of a linear or branched alkyl having 1-4 carbon atoms, a methoxyethyl, or a 2-pyridyl methyl group. The compounds of the present invention are useful in relaxing cardiac or smooth muscle.

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patent: 3775422 (1973-11-01), Bossert et al.
patent: 3799934 (1974-03-01), Meyer et al.
patent: 3932645 (1976-01-01), Meyer et al.
patent: 3985758 (1976-10-01), Murakami et al.
patent: 4031104 (1977-06-01), Bossert et al.
patent: 4048178 (1977-09-01), Gordon
patent: 4219653 (1980-08-01), Kastron et al.
patent: 4258042 (1981-03-01), Loev et al.
patent: 4264611 (1981-04-01), Berntsson et al.
patent: 4284634 (1981-08-01), Sato
patent: 4338322 (1982-06-01), Sato
patent: 4370334 (1983-01-01), Sato
patent: 4380547 (1983-04-01), Materae
patent: 4510310 (1985-04-01), Wehinger et al.
Bossert, F., H. Meyer, and E. Wehinger, 4-Aryldihydropyridines, a New Class of Highly Active Calcium Antagonists Angew, Chem. Int. E.D. Engl. 20 (1981) 762-769.
Yakugaku Zasshi, 86:9, pp. 815-822 (1966).
J. Chem. Soc. (c) p. 138 (1969).
Synthesis, p. 761 (Sep. 1983).

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