Drug – bio-affecting and body treating compositions – Designated organic active ingredient containing – Having -c- – wherein x is chalcogen – bonded directly to...
Patent
1990-06-06
1991-08-06
Shen, Cecilia
Drug, bio-affecting and body treating compositions
Designated organic active ingredient containing
Having -c-, wherein x is chalcogen, bonded directly to...
544392, 544394, A61K 31495, C07D29608
Patent
active
050378287
ABSTRACT:
The present invention provides compounds of the general formula: ##STR1## wherein R.sub.1 is a hydroxyl group or a methoxy radical, R.sub.2 is a hydrogen atom or a hyroxyl group and R.sub.3 is a hydrogen atom or a hydroxyl group, with the proviso that R.sub.2 and R.sub.3 are not simultaneously hydrogen atoms when R.sub.1 is a methoxy radical; and the pharmacologically acceptable salts thereof.
The present invention also provides processes for the preparation of these compounds and pharmaceutical compositions containing them.
REFERENCES:
patent: 3997666 (1976-12-01), Witte et al.
patent: 3997667 (1976-12-01), Witte et al.
Borbe-Volmer Harald D.
Engel Jurgen
Kutscher Bernhard
Niebch Georg
Siebert-Weigel Marianne
Boehringer Mannheim GmbH
Shen Cecilia
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