申请人:Hoechst-Roussel Pharmaceuticals Inc.
公开号:US05032599A1
公开(公告)日:1991-07-16
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.
公开了一种新的化合物,其化学式为##STR1## 其中n为0或1; R为氢或低碳基; R.sub.1为氢,低碳基,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.4R.sub.5或--CH.sub.2OR.sub.5,--CH.dbd.CR.sub.6R.sub.7,--CH.dbd.CHCN,--CH.dbd.CHOCH.sub.3,--CH.dbd.CHCO.sub.2C.sub.2H.sub.5,##STR2##其中R.sub.4为氢,低碳基,芳基低碳基或芳基,R.sub.5为低碳基,芳基或芳基低碳基,R.sub.6为氢或低碳基,R.sub.7为氢,低碳基或芳基; R.sub.2为氢,低碳基,低烯基,低炔基,--CH.sub.2CO.sub.2C.sub.2H.sub.5,芳基低碳基,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,低碳基氨基羰基,芳基低碳基氨基羰基,芳基氨基羰基,烷酰基,芳基低碳烷酰基,芳酰基,烯酰基,炔酰基,--CH.sub.2C.tbd.CCH.sub.2--NR'R",--CH.sub.2CH.dbd.CHCH.sub.2--NR'R"或--CH.sub.2CH.sub.2CH.sub.2CH.sub.2--NR'R",其中R'和R"独立地为低碳基或--NR'R"作为一个整体为##STR3##,R.sub.3为氢,NO.sub.2,NH.sub.2,卤素,低碳酰胺,芳基低碳酰胺,芳酰胺或低碳基; 前提是当n为0时,R.sub.2为苯基,R.sub.3为氢,吡啶基是2-吡啶基,R和R.sub.1不得为2-甲基和5-甲基; 或其药学上可接受的酸加盐,其用于增强记忆,合成它们的方法,包含有效增强记忆量的这种化合物的制药组合物以及治疗需要增强记忆的患者的方法,该方法包括向患者注射这种化合物。