3-(Tetrazol-5-yl)-1-azaxanthones

Details 3-(Tetrazol-5-yl)-1-azaxanthones 3-(Tetrazol-5-yl)-1-azaxanthones

1978-09-18

1981-05-12

Rizzo, Nicholas S.

Organic compounds -- part of the class 532-570 series

Organic compounds

Heterocyclic carbon compounds containing a hetero ring...

424256, C07D27301, A61K 31395

Patent

active

042673321

ABSTRACT:
Novel 3-(tetrazol-5-yl)-1-azaxanthone and its derivatives, which are shown by the following formula ##STR1## wherein R.sub.1 is hydrogen, amino or hydroxyl; R.sub.2 is alkyl, alkoxy, halogen, nitro, carboxyl, hydroxyl, butadienylene (--CH.dbd.CH--CH.dbd.CH--) which forms a benzene ring with any adjacent carbon atoms or amino group which may be unsubstituted or substituted by at least one alkyl; and m is 0, 1 or 2; and their physiologically acceptable salts, are usable as effective medicines for preventing and/or treating allergic diseases.

REFERENCES:
patent: 3931199 (1976-01-01), Nakanishi et al.
patent: 3931205 (1976-01-01), Nakanishi et al.
patent: 4085111 (1978-04-01), Oe et al.

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