Organic compounds -- part of the class 532-570 series – Organic compounds – Nitrogen attached directly or indirectly to the purine ring...
Patent
1988-10-05
1989-09-26
Berch, Mark L.
Organic compounds -- part of the class 532-570 series
Organic compounds
Nitrogen attached directly or indirectly to the purine ring...
548253, 560 22, 544391, 546226, C07D24144, C07D40112, C07D40312, A61K 31495
Patent
active
048701750
ABSTRACT:
A compound of the formula ##STR1## wherein Z is N or NH, is a single or double bond, R.sub.1 is hydrogen, C.sub.1-20 alkyl or optionally substituted phenyl, A is lower alkylene, R is carboxyl, lower alkoxycarbonyl, ##STR2## or 1-cycloalkyl-tetrazole-5-yl, R.sub.2 is lower alkyl, hydroxy-lower alkyl or optionally substituted phenyl-lower alkyl, R.sub.3 is lower alkyl or cycloalkyl, or R.sub.2 and R.sub.3 together constitute ##STR3## and R.sub.5 and R.sub.6 are hydrogen or optionally substituted phenyl, or a pharmacologically acceptable salt thereof, has platelet aggregation inhibitory activity and/or cyclic AMP/phosphodiesterase inhibitory activity.
REFERENCES:
patent: 4167512 (1979-09-01), Lai
patent: 4296114 (1981-10-01), Appleton et al.
patent: 4466916 (1984-08-01), Lai et al.
patent: 4636246 (1987-01-01), Plath et al.
Hayashi Eiichi
Nisimura Katumi
Saeki Kenzi
Saito Tetsu
Suzuki Yukio
Berch Mark L.
Bernhardt E.
Toyo Jozo Kabushiki Kaisha
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