Heterocyclic intermediates

Organic compounds -- part of the class 532-570 series – Organic compounds – Chalcogen in the nitrogen containing substituent

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544 59, 544229, 544403, 546192, C07D26530

Patent

active

053826663

ABSTRACT:
Biphenylyl tetrazoles for treating hypertension in mammals of the formula: ##STR1## where X is CH.sub.2, O, S, N--R.sup.4, NH, NCHO, NCOCH.sub.3 or NCO.sub.2 R.sup.4 ;

REFERENCES:
patent: 3123643 (1964-03-01), Palopoli et al.
patent: 5095021 (1992-03-01), Zipplies et al.

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