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US 4,046,805 AGranted
Substituted-hydroxy-naphthalenedisulfonic acid compounds
AssigneeAmerican Cyanamid Company
InventorsSeymour Bernstein, Robert Herman Lenhard, Milton David Heller
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Abstract
Substituted-hydroxy-naphthalenedisulfonic acids, acid ureides and salts thereof useful as complement inhibitors.
Claims4
A compound selected from those of the formula:
- ##STR10## and A is hydrogen, alkali metal or alkaline earth metal, with the proviso that each A is identical in the same compound.
A compound selected from those of the formula:
- ##STR11##
A compound according to claim 2, 4-hydroxy-5-{m-[3-(.alpha.,.alpha.,.alpha.-trifluoro-m-tolyl)ureido]benzam ido}-2,7-naphthalenedisulfonic acid, disodium salt.
A compound according to claim 2, 4-{m-{3-[p(fluorosulfonyl)phenyl]ureido}benzamido}-5-hydroxy-2,7-naphthale nedisulfonic acid, disodium salt.
Dependencies are inferred from the claim text.