Ureylene naphthalene sulfonic acid intermediates

Details Ureylene naphthalene sulfonic acid intermediates Ureylene naphthalene sulfonic acid intermediates

1978-10-13

1980-10-21

Chan, Nicky

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

C-metal

C07C14360

Patent

active

042293715

ABSTRACT:
Ureylenebis substituted phenylenecarbonylimino symmetrical phenenylbiscarbonylimino dinaphthalenepoly-sulfonic acid salts, and nitro and amino substituted benzamido phenylenedicarbonyl dinaphthalenepoly-sulfonic acid salts that are new intermediates for the preparation of the active ureides, which have complement inhibiting activity.

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
patent: 4051176 (1977-09-01), Bernstein et al.

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