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US 5,023,341 AGranted
Compounds having a disubstituted acetylene moiety and retinoic acid-like biological activity
AssigneeAllergan, Inc.
InventorRoshantha A. S. Chandraratna
Life of this patent
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Abstract
Disubstituted acetylene thiochroman containing derivatives of the formulae below wherein the symbols have the following meanings; R.sub.1, R.sub.2, R.sub.3, R.sub.4 and R.sub.5 are hydrogen or lower alkyl groups (of 1-6 carbons) where R.sub.1, R.sub.2, R.sub.3, R.sub.4 and R.sub.5 may be identical or different from one another) X is S ##STR1##
Claims9
A compound of the formula, ##STR11## wherein X is S, and each of independently
- R.sub.1, R.sub.2, R.sub.3, R.sub.4 and R.sub.5 is hydrogen or lower alkyl having 1 to 6 car bons, or a salt thereof.
Dependencies are inferred from the claim text.