Substituted 2H-pyran-2,6(3H)-dione derivatives

Details Substituted 2H-pyran-2,6(3H)-dione derivatives Substituted 2H-pyran-2,6(3H)-dione derivatives

1978-03-10

1979-08-21

Chan, Nicky

Drug, bio-affecting and body treating compositions

Effervescent or pressurized fluid containing

Organic pressurized fluid

424283, 2603458R, 2603457R, 2603435, A61K 3135, A61L 904, C07D30916

Patent

active

041653653

ABSTRACT:
Substituted 2H-pyran-2,6(3H)-dione derivatives useful in the treatment of allergic conditions are prepared by reaction of 3,5-diacetyl-4,6-dihydroxy-2H-pyran-2-one with an appropriate aniline.

REFERENCES:
patent: 4015009 (1977-03-01), Chakrin et al.
patent: 4017633 (1977-04-01), Willis
patent: 4025614 (1977-05-01), Snader et al.
patent: 4025642 (1977-05-01), Snader et al.
patent: 4032652 (1977-06-01), Chakrin et al.

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