(1H,3H,5H)-(1)-Benzopyrano-(2,3-d)-pyrimidine-4-one-2-thiones an

Details (1H,3H,5H)-(1)-Benzopyrano-(2,3-d)-pyrimidine-4-one-2-thiones an (1H,3H,5H)-(1)-Benzopyrano-(2,3-d)-pyrimidine-4-one-2-thiones an

1979-11-15

1981-10-27

Daus, Donald G.

Drug, bio-affecting and body treating compositions

Antigen, epitope, or other immunospecific immunoeffector

Bacterium or component thereof or substance produced by said...

424251, 544115, 544250, A61K 31505, C07D491052

Patent

active

042973554

ABSTRACT:
This invention relates to (1H,3H,5H)-(1)-benzopyrano-(2,3-d)-pyrimidine-4-one-2-thiones, to pharmaceutically acceptable salts thereof, to the methods for their preparation and to their use as agents in the prophylactic treatment of allergic conditions such as asthma, allergic rhinitis, urticaria and ulcerative colitis.

REFERENCES:
patent: 3577420 (1971-05-01), Hess et al.
patent: 3896128 (1975-07-01), Kast et al.
patent: 3978059 (1976-08-01), Hardtmann
patent: 4013646 (1977-03-01), Hardtmann
patent: 4052398 (1977-10-01), Kast et al.
patent: 4128648 (1978-12-01), Rovnyak
patent: 4223031 (1980-09-01), Covington et al.
Schulte, et al., Arch. Pharm. Ber. Deut. Pharm. Ges. (1972), 305(5), 354-359.
Posner, Organic Reactions, vol. 19, John Wiley & Sons, (1972), pp. 3-4, 78-87.

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