Organic compounds -- part of the class 532-570 series – Organic compounds – Heterocyclic carbon compounds containing a hetero ring...
Patent
1989-06-30
1989-12-26
Springer, David B.
Organic compounds -- part of the class 532-570 series
Organic compounds
Heterocyclic carbon compounds containing a hetero ring...
546169, 546177, 546153, 546156, 548165, 548221, 564230, C07D21514, C07D21512
Patent
active
048899356
ABSTRACT:
There are disclosed compounds of the formula ##STR1## wherein ##STR2## R is hydrogen, lower alkyl, phenyl or benzyl; R.sup.1 is hydrogen, lower alkyl, trifluoromethyl, amino, mono- or di-lower alkylamino, nitro, hydroxy, carboxy, lower alkoxycarbonyl, lower alkoxy or halo;
REFERENCES:
patent: 2049582 (1936-08-01), Ziegler
patent: 3979398 (1976-09-01), White
patent: 4826987 (1989-05-01), Nielsen et al.
patent: 4839366 (1989-05-01), Quadro
American Home Products Corporation
Springer David B.
Tarnowski George
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