Organic compounds -- part of the class 532-570 series – Organic compounds – Nitrogen attached directly or indirectly to the purine ring...
Patent
1996-03-21
1998-06-09
Bernhardt, Emily
Organic compounds -- part of the class 532-570 series
Organic compounds
Nitrogen attached directly or indirectly to the purine ring...
544295, 544364, 544375, 544376, 546146, 546167, 546175, 546194, 546202, 546256, 5462811, 549 43, 549 44, 549 48, C07D40914, C07D40912
Patent
active
057636095
ABSTRACT:
Disclosed are compounds of the formula: ##STR1## or the pharmaceutically acceptable acid addition salts thereof, wherein: R.sub.1, R.sub.2, R.sub.3, R.sub.4 are the same or different and represent hydrogen, C.sub.1 -C.sub.6 alkyl, halogen, hydroxy, amino, cyano, nitro, trifluoromethyl, trifluoromethoxy, C.sub.1 -C.sub.6 alkoxy, --O.sub.2 CR', --NHCOR', --COR', --SO.sub.m R', where R' is C.sub.1 -C.sub.6 alkyl and wherein m is 0, 1 or 2; or
REFERENCES:
patent: 4146624 (1979-03-01), Albrecht et al.
Protiva et al., Chemical Abstracts, vol., 73, No. 98941 (1970).
Pelz et al., Chemical Abstracts, vol. 69, No. 86737 (1968).
Chen Xi
Yuan Jun
Bernhardt Emily
Neurogen Corporation
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