Heterocyclic compounds

Details Heterocyclic compounds Heterocyclic compounds

1991-08-21

1993-08-31

Tsang, Cecilia

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

Organic compounds

Four or more ring nitrogens in the bicyclo ring system

544249, 544385, 8509, C07D21102, C07D21308, C07D21314

Patent

active

052410684

ABSTRACT:
Compounds of the formulae ##STR1## in which R.sup.1, R.sup.2, R.sup.3, R.sup.4, X.sup.1 and Y.sup.1 have the stated meanings, processes for their preparation and their use.

REFERENCES:
patent: 4206114 (1981-10-01), Appleton et al.
patent: 4289759 (1981-09-01), Heavner et al.
patent: 4417014 (1983-11-01), Buecheler

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