申请人:Hoechst-Roussel Pharmaceuticals, Inc.
公开号:US04792562A1
公开(公告)日:1988-12-20
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## --CH.sub.2 CHR.sub.6 R.sub.7, --CH.sub.2 CH.sub.2 CN, --CH.sub.2 CH.sub.2 OCH.sub.3, --CH.sub.2 CH.sub.2 CO.sub.2 C.sub.2 H.sub.5, ##STR3## 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 ##STR4## 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.
揭示了一种新颖的化合物,其化学式为##STR1##其中n为0或1;R为氢或低碳烷基;R.sub.1为氢、低碳烷基、卤素、氰基、低碳酰基、芳基低碳酰基、芳酰基、--CH(OH)R.sub.4、--C(OH)R.sub.4 R.sub.5或--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##--CH.sub.2 CHR.sub.6 R.sub.7、--CH.sub.2 CH.sub.2 CN、--CH.sub.2 CH.sub.2 OCH.sub.3、--CH.sub.2 CH.sub.2 CO.sub.2 C.sub.2 H.sub.5、##STR3##其中R.sub.4为氢、低碳烷基、芳基低碳烷基或芳基,R.sub.5为低碳烷基、芳基或芳基低碳烷基,R.sub.6为氢或低碳烷基,R.sub.7为氢、低碳烷基或芳基;R.sub.2为氢、低碳烷基、低碳烯基、低碳炔基、--CH.sub.2 CO.sub.2 C.sub.2 H.sub.5、芳基低碳烷基、苯基、硝基苯基、氰基苯基、三氟甲基苯基、氨基苯基、低碳酰胺基苯基、低碳氧羰基、芳基低碳氧羰基、芳氧羰基、低碳烷基氨基羰基、芳基低碳烷基氨基羰基、芳基氨基羰基、烷酰基、芳基低碳酰基、芳酰基、烯酰基、炔酰基、--CH.sub.2 C.tbd.CCH.sub.2 --NR'R"、--CH.sub.2 CH.dbd.CHCH.sub.2 --NR'R"或--CH.sub.2 CH.sub.2 CH.sub.2 CH.sub.2 --NR'R",其中R'和R"独立地为低碳烷基或--NR'R"作为一个整体为##STR4##,R.sub.3为氢、NO.sub.2、NH.sub.2、卤素、低碳酰胺基、芳基低碳酰胺基、芳酰胺基或低碳烷基;但当n为0时,R.sub.2为苯基,R.sub.3为氢,吡啶基为2-吡啶基时,R和R.sub.1可能不是2-甲基和5-甲基;或其药学上可接受的酸盐,用于增强记忆,合成它们的方法,包含有效增强记忆量的这种化合物的药物组合物以及治疗需要记忆增强的患者的方法,包括将这种化合物给患者服用。