Organic compounds -- part of the class 532-570 series – Organic compounds – Nitrogen attached directly or indirectly to the purine ring...
Patent
1995-05-15
1998-04-28
Berch, Mark L.
Organic compounds -- part of the class 532-570 series
Organic compounds
Nitrogen attached directly or indirectly to the purine ring...
544 80, 544115, 546278, 546306, 5483211, 564 45, 564 50, C07D48704, C07D40104, C07D23372, A61K 31495
Patent
active
057446024
ABSTRACT:
The invention encompasses compounds of the formula: ##STR1## and the pharmaceutically acceptable salts thereof wherein R.sub.1, R.sub.2, R.sub.3, R.sub.4, and X are variables; and
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patent: 5130430 (1992-07-01), Shaw
patent: 5166344 (1992-11-01), Davey
Occelli, Farmaco 39, 322-335 (1984).
Shaw Kenneth
Whitcome Philip
Berch Mark L.
Neurogen Corporation
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