Organic compounds -- part of the class 532-570 series – Organic compounds – Carboxylic acid esters
Patent
1978-10-02
1980-10-21
Chan, Nicky
Organic compounds -- part of the class 532-570 series
Organic compounds
Carboxylic acid esters
260507R, C07C14360, C07C143525
Patent
active
042295840
ABSTRACT:
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 sulfobenzamido salts, which are new intermediates for the preparation of the active ureylenes, and the process for their preparation.
REFERENCES:
patent: 1218654 (1917-03-01), Heymann et al.
patent: 1218655 (1917-03-01), Heymann et al.
patent: 1308071 (1919-07-01), Heymann et al.
patent: 2164229 (1939-06-01), Coulthard
Bernstein Seymour
Conrow Ransom B.
American Cyanamid Company
Caroli Claude J.
Chan Nicky
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