Organic compounds -- part of the class 532-570 series – Organic compounds – Nitrogen attached directly or indirectly to the purine ring...
Patent
1988-06-09
1989-08-15
Hollrah, Glennon H.
Organic compounds -- part of the class 532-570 series
Organic compounds
Nitrogen attached directly or indirectly to the purine ring...
544238, 544360, 544380, 544382, 544383, 544398, G07D24104
Patent
active
048576441
ABSTRACT:
There are disclosed compounds of the formula ##STR1## wherein R.sup.1 and R.sup.2 are each, independently, hydrogen, lower alkyl or phenyl; or R.sup.1 and R.sup.2 taken together represent --(CH.sub.2).sub.4 --or ##STR2## where the dotted line represents an optional double bond; R.sup.3 is hydrogen, lower alkyl, lower alkoxy or halo;
REFERENCES:
patent: 4425342 (1984-01-01), Allen et al.
patent: 4602015 (1986-07-01), Crisafulli et al.
American Home Products Corporation
Hollrah Glennon H.
Tarnowski George
Turnipseed James H.
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