Heterocyclic compounds and their pharmaceutical formulation

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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546321, C07D21186, A61K 31455

Patent

active

050913956

ABSTRACT:
Compounds are described of the formula ##STR1## wherein R.sub.1 and R.sub.4 independently represent a C.sub.1-4 alkyl group;

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Ca 93:204462g. Teraji et al.
Rahwan et al., Annual Reports in Medicinal Chemistry 1981, pp. 257-264.
Thomas, G. et al., J. Cardiovascular Pharm. 6, pp. 1170-1176, (1984).

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