4-Amino-benzo[b]pyran-3-ol derivatives

Details 4-Amino-benzo[b]pyran-3-ol derivatives 4-Amino-benzo[b]pyran-3-ol derivatives

1983-04-06

1985-09-17

Daus, Donald G.

Drug, bio-affecting and body treating compositions

Designated organic active ingredient containing

Having -c-, wherein x is chalcogen, bonded directly to...

514409, 514278, 514370, 548407, 548525, 546 15, 546196, C07D40504, C07D31168, A61K 3135, A61K 3133

Patent

active

045421498

ABSTRACT:
Anti-hypertensive compounds of formula (I): ##STR1## wherein: one of R.sub.1 and R.sub.2 is nitro, cyano or C.sub.1-3 alkylcarbonyl, and the other is methoxy or amino optionally substituted by one or two C.sub.1-6 alkyl or by C.sub.2-7 alkanoyl;

REFERENCES:
patent: 4048317 (1977-09-01), Watts
patent: 4251537 (1981-02-01), Evans
patent: 4363811 (1982-12-01), Evans et al.
patent: 4366163 (1982-12-01), Evans et al.
patent: 4391815 (1983-07-01), Evans
patent: 4446113 (1984-05-01), Evans et al.
patent: 4510152 (1985-04-01), Faruk
Journal of Med. Chemistry, 1978, vol. 21, No. 10, pp. 1081-1084.
Bui Vinh Lap et al., Chem. Abstracts, 91:39260p, (1979).

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