Anti-hypertensive 1-substituted spiro(piperidine-oxobenzoxazine)

Drug – bio-affecting and body treating compositions – Antigen – epitope – or other immunospecific immunoeffector – Bacterium or component thereof or substance produced by said...

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4242485, 544 71, A61K 31535, C07D49810

Patent

active

043495494

ABSTRACT:
Novel compounds of the formula: ##STR1## and the pharmaceutically acceptable acid addition salts thereof, wherein R.sup.1, R.sup.2, R.sup.3 and R.sup.4 are each independently hydrogen, hydroxy, lower alkyl, lower alkoxy or halo;

REFERENCES:
patent: 3720670 (1973-03-01), Nakanishi et al.
patent: 4224333 (1980-09-01), Clemence et al.

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