Phosphinic ester substituted benzopyran derivatives

Drug – bio-affecting and body treating compositions – Designated organic active ingredient containing – Phosphorus containing other than solely as part of an...

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549220, A61K 31665, C07F 928

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active

056123230

ABSTRACT:
##STR1## and pharmaceutically acceptable salts thereof wherein Y is a single bond, --CH.sub.2 --, --C(O)--, --S-- or --N(R.sup.11)--; and R.sup.1 to R.sup.6 are as defined herein. These compounds have potassium channel activating activity and are useful, therefore for example, as cardiovascular agents.

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