申请人:Sterling Drug Inc.
公开号:US04560753A1
公开(公告)日:1985-12-24
2-Q-6-Q'-8-R-pyrido[2,3-d]pyrimidin-5(8H)-ones (I), where Q is 4(or 3)-hydroxyphenyl, 4(or 3)-methoxyphenyl, 4(or 3)-pyridinyl or 4(or 3)-pyridinyl having one or two lower-alkyl substituents, R' is hydrogen or alkyl having one to four carbon atoms, Q is hydrogen, amino or nitro, and R is alkyl having from one to four carbon atoms, CH(C.sub.2 H.sub.5).sub.2, (CH.sub.2).sub.n .dbd.CHCH.sub.2 where n is 1 or 2, or Y--Z where Y is alkylene having from two to four carbon atoms and having its connecting linkages on different carbon atoms and Z is hydroxy, OR.sub.1 or NR.sub.1 R.sub.2 where R.sub.1 and R.sub.2 are each methyl or ethyl, or acid-addition salts thereof, and their preparation are shown. Also shown is the cardiotonic use of I where Q is 4(or 3)-hydroxyphenyl, 4(or 3)-pyridinyl or 4(or 3)-pyridinyl having one or two lower-alkyl substituents and Q' is hydrogen or amino.
2-Q-6-Q'-8-R-吡啶并[2,3-d]嘧啶-5(8H)-酮(I),其中Q为4(或3)-羟基苯基、4(或3)-甲氧基苯基、4(或3)-吡啶基或带有一个或两个较低烷基取代基的4(或3)-吡啶基,R'为氢或具有一至四个碳原子的烷基,Q为氢、氨基或硝基,R为具有一至四个碳原子的烷基,CH(C.sub.2 H.sub.5).sub.2、(CH.sub.2).sub.n .dbd.CHCH.sub.2,其中n为1或2,或Y--Z,其中Y为具有两至四个碳原子的烷基,并且其连接键连接在不同的碳原子上,Z为羟基、OR.sub.1或NR.sub.1 R.sub.2,其中R.sub.1和R.sub.2各自为甲基或乙基,或其酸盐加合物,以及它们的制备方法。还显示了I的强心用途,其中Q为4(或3)-羟基苯基、4(或3)-吡啶基或带有一个或两个较低烷基取代基的4(或3)-吡啶基,Q'为氢或氨基。