Chromone derivatives

Details Chromone derivatives Chromone derivatives

1973-06-20

1977-01-04

Sutto, Anton H.

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

C-metal

260268TR, 260268BC, 260302A, 260302D, 260302H, 260304R, 260304A, 260304D, 2603403, 2603452, 424251, 424270, 424282, 424283, C07D31124

Patent

active

040012808

ABSTRACT:
Chromone derivatives of the formula: ##STR1## wherein R.sup.1 is alkoxy, an N,S-containing heterocyclic group or aryloxy in which heterocyclic group may be substituted with halogen or acyl, and aryl may be substituted with amino, alkylamino, acylamino, nitro or alkylenedioxy; R.sup.2 is alkylene; R.sup.3 is hydroxy, alkoxy or a group of the formula ##STR2## in which R.sup.4 is hydrogen, R.sup.5 is hydroxy or amino or R.sup.4 and R.sup.5 means taken together with the adjacent nitrogen atom, piperazinyl substituted with alkyl or hydroxyalkyl; provided that when R.sup.3 is hydroxy or alkoxy, R.sup.1 is an N,S-containing heterocyclic group or aryloxy in which heterocyclic group is substituted with halogen or acyl, and aryl is substituted with amino, alkylamino, acylamino, nitro or alkylenedioxy, and nontoxic, pharmaceutically acceptable salt thereof. These compounds are useful as anti-allergic agents.

REFERENCES:
patent: 3427324 (1969-02-01), Fitzmaurice
patent: 3484445 (1969-12-01), Lee et al.
patent: 3629290 (1971-12-01), Cairns et al.
patent: 3786071 (1974-01-01), Cairns et al.
patent: 3882148 (1975-05-01), Augstein
Allinger et al., Organic Chemistry, (1972), p. 247.

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