5:6-Benzo-.gamma.-pyrone derivatives and process for their prepa

Details 5:6-Benzo-.gamma.-pyrone derivatives and process for their prepa 5:6-Benzo-.gamma.-pyrone derivatives and process for their prepa

1977-09-16

1979-04-10

Demers, Arthur P.

Drug, bio-affecting and body treating compositions

Antigen, epitope, or other immunospecific immunoeffector

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

2603452, 260308D, 26032685, 26032687, 260327A, 260327C, 2603322A, 2603403, 424250, 424269, 424276, 544111, 544120, 544124, 544151, 548336, 548335, 542441, 542459, 542430, 542432, 542454, 424273R, 544230, 544336, 544376, 546 15, 546269, 546318, C07D40504, C07D40506

Patent

active

041489004

ABSTRACT:
Chromone compounds carrying a pyridyl substituent at the 2-position are disclosed, such as, for instance, 6-carboxy-2-(2'-pyridyl)-chromone. The disclosed compounds are useful in the treatment of allergies.

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patent: 3825574 (1974-07-01), Brown
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Hsu et al., Chem. Abst. 54(1960) col. 4553g.
Koo, J. Org. Chem. 26(1961) pp. 2440-2444.
Owada, Chem. Abst. 78(1973) #84197.
Contessa et al., Chem. Abst. 72(1970) #98774.

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