Ureylenebis(anionic substituted phenylene carbonyl)imino naphthalene sulfonic acids and naphthalene carboxylic acids and their salts

摘要

Ureylenebis(anionic substituted phenylene carbonyl)imino naphthalene sulfonic acids and naphthalene carboxylic acids and their salts, which are useful as inhibitors of the complement system of warm-blooded animals. Naphthyl sulfobenzoamido salts, which are new intermediates for the preparation of the active ureylenes, and the process for their preparation.