Pyranochromone derivatives and therapeutic composition comprisin

Details Pyranochromone derivatives and therapeutic composition comprisin Pyranochromone derivatives and therapeutic composition comprisin

1978-07-24

1980-06-17

Chan, Nicky

Drug, bio-affecting and body treating compositions

Nonspecific immunoeffector, per se ; or nonspecific...

Lipid or oil

2603452, A61K 3135, C07D31178

Patent

active

042084261

ABSTRACT:
Novel pyranochromone derivatives having the general formula: ##STR1## wherein R.sub.1 represents hydrogen atom, an alkali metal or an alkyl group containing 1-4 carbon atoms; R.sub.2, R.sub.3 and R.sub.4 represent hydrogen atom or an alkyl group containing 1-4 carbon atoms respectively, provided that both R.sub.3 and R.sub.4 are not hydrogen atom at the same time; R.sub.5 and R.sub.6 represent an alkyl group containing 1-4 carbon atoms respectively; and R.sub.7 represents hydrogen atom, hydroxyl group, an alkyl group containing 1-4 carbon atoms or an alkoxyl group containing 1-4 carbon atoms. The novel medicaments comprising predominantly the above derivative are effective for the treatment of allergic diseases.

REFERENCES:
patent: 3629290 (1971-12-01), Cairns et al.
patent: 3952013 (1976-04-01), Hazard et al.

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