Nitrogen-heterocyclic compounds and quaternary salts thereof

Details Nitrogen-heterocyclic compounds and quaternary salts thereof Nitrogen-heterocyclic compounds and quaternary salts thereof

1991-02-01

1992-07-07

Tsang, Cecilia

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

Organic compounds

Nitrogen attached directly or indirectly to the purine ring...

544374, 544399, 544400, C07D24104, C07D29500

Patent

active

051284731

ABSTRACT:
New piperazine compounds of the formula ##STR1## wherein A is ##STR2## Y is --O-- or --NR.sub.4 --; Z is alkylene containing 2 to 6 carbon atoms in the principal chain and a total of up to 8 carbon atoms;

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