1,2-diamino-cyclobuten-3,4-dione derivatives

Details 1,2-diamino-cyclobuten-3,4-dione derivatives 1,2-diamino-cyclobuten-3,4-dione derivatives

1990-10-29

1992-09-15

Ivy, C. Warren

Drug, bio-affecting and body treating compositions

Designated organic active ingredient containing

Phosphorus containing other than solely as part of an...

514456, 549218, 549345, 549399, A61K 31665, A61K 3135, C07D31122, C07D31104

Patent

active

051478668

ABSTRACT:
A compound of formula (I) or a pharmaceutically acceptable salt thereof: ##STR1## wherein a and b together form an --O-- or --CH.sub.2 -- linkage or a bond;

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