N-(pyrrol-l-yl)pyridinamines

Details N-(pyrrol-l-yl)pyridinamines N-(pyrrol-l-yl)pyridinamines

1988-09-16

1991-07-16

Rotman, Alan L.

Drug, bio-affecting and body treating compositions

Designated organic active ingredient containing

Having -c-, wherein x is chalcogen, bonded directly to...

514318, 514333, 546193, 546256, 546281, A61K 3144, A61K 31445, C07D40102

Patent

active

050325990

ABSTRACT:
There are disclosed novel compounds of the formula ##STR1## where n is 0 or 1; R is hydrogen or loweralkyl; R.sub.1 is hydrogen, loweralkyl, halogen, cyano, loweralkanoyl, arylloweralkanoyl, aroyl, --CH(OH)R.sub.4, --C(OH)R.sub.4 R.sub.5 or --CH.sub.2 OR.sub.5, --CH.dbd.CR.sub.6 R.sub.7, --CH.dbd.CHCN, --CH.dbd.CHOCH.sub.3, --CH.dbd.CHCO.sub.2 C.sub.2 H.sub.5, ##STR2## R.sub.4 being hydrogen, loweralkyl, arylloweralkyl or aryl, R.sub.5 being loweralkyl, aryl or arylloweralkyl, R.sub.6 being hydrogen or loweralkyl and R.sub.7 being hydrogen, loweralkyl or aryl; R.sub.2 is hydrogen, loweralkyl, loweralkenyl, loweralkynyl, --CH.sub.2 CO.sub.2 C.sub.2 H.sub.5, arylloweralkyl, phenyl, nitrophenyl, cyanophenyl, trifluoromethylphenyl, aminophenyl, loweralkanoylaminophenyl, loweralkoxycarbonyl, arylloweralkoxycarbonyl, aryloxycarbonyl, loweralkylaminocarbonyl, arylloweralkylaminocarbonyl, arylaminocarbonyl, alkanoyl, arylloweralkanoyl, aroyl, alkenoyl, alkynoyl, --CH.sub.2 C.tbd.CCH.sub.2 --NR'R", --CH.sub.2 CH.dbd.CHCH.sub.2 --NR'R" or --CH.sub.2 CH.sub.2 CH.sub.2 CH.sub.2 --NR'R", R' and R" being independently loweralkyl or --NR'R" taken as a whole being ##STR3## and R.sub.3 is hydrogen, NO.sub.2, NH.sub.2, halogen, loweralkanoylamino, arylloweralkanoylamino, aroylamino or loweralkyl; with the proviso that when n is 0, R.sub.2 is phenyl, R.sub.3 is hydrogen and the pyridine moiety is 2-pyridinyl, R and R.sub.1 may not be 2-methyl and 5-methyl; or pharmaceutically acceptable acid addition salts thereof, which are useful for enhancing memory, methods for synthesizing them, pharmaceutical compositions comprising an effective memory enhancing amount of such a compound and a method of treating a patient in need of memory enhancement which comprises administering such a compound to the patient.

REFERENCES:
patent: 4631286 (1986-12-01), Shutske et al.
patent: 4670562 (1987-06-01), Martin et al.
patent: 4695573 (1987-09-01), Shutske et al.

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