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    • 44. 发明授权
    • 2,3-Polymethylene-4-oxo-4H-pyrido[1,2-a]pyrimidines
    • 2,3-二亚甲基-4-氧代-4H-吡啶并[1,2-a]嘧啶
    • US4220771A
    • 1980-09-02
    • US935071
    • 1978-08-18
    • Istvan HermeczFerenc FulopZoltan MeszarosGabor BernathJozsef Knoll
    • Istvan HermeczFerenc FulopZoltan MeszarosGabor BernathJozsef Knoll
    • A61K31/505A61K31/517A61K31/55A61P7/02A61P9/10A61P11/00A61P25/04A61P29/00A61P31/04A61P43/00C07D471/04C07D487/04C07D487/14
    • C07D471/04C07D487/04
    • Pharmaceutical intermediates, morphine potentiators and other compounds have the formula ##STR1## wherein R is hydrogen, halogen, C.sub.1-4 alkyl, hydroxy, nitro, amino, carboxy or a carboxylic acid derivate radical, R.sup.1 is hydrogen or a C.sub.1-4 alkyl, R.sup.2 is hydrogen or C.sub.1-4 alkyl, R.sup.3 is hydrogen, R.sup.4 is hydrogen or C.sub.1-4 alkyl, R.sup.5 is hydrogen R.sup.6 is hydrogen or R.sup.3 and R.sup.4 and/or R.sup.5 and R.sup.6 form a chemical bond, X is oxygen or imino, m is 1, 2, 3 or 4, n is 0, 1, 2 or 3, and if n is 1, then the dotted lines can stand for bonds, with the proviso that if m=1 and n=1 and if in the 2,3-, 6,7-, 8,9- and 1,10-positions double bonds are present, and R.sup.1 and R.sup.2 are hydrogen, then R is other than 9-hydroxy or 9-methyl; if m=2 and n=1 and R.sup.2 is hydrogen, then at least one of R and R.sup.1 is other than hydrogen; and if m=2 and n=2 and R.sup.2 is hydrogen and the molecule is a 2,3,4,6,7,8,9,10-octahydro derivative, then at least one of R and R.sup.1 is other than hydrogen or an acid-addition or quaternary salt thereof.
    • 药物中间体,吗啡增效剂和其它化合物具有式“IMAGE”,其中R是氢,卤素,C 1-4烷基,羟基,硝基,氨基,羧基或羧酸衍生物基团,R 1是氢或C 1-4烷基, R2是氢或C1-4烷基,R3是氢,R4是氢或C1-4烷基,R5是氢R6是氢或R3和R4和/或R5和R6形成化学键,X是氧或亚氨基,m 是1,2,3或4,n是0,1,2或3,如果n是1,则虚线可以代表键,条件是如果m = 1且n = 1,如果在 存在2,3,6,7,8,9和1,10-位双键,R1和R2是氢,则R不是9-羟基或9-甲基; 如果m = 2且n = 1且R2是氢,则R和R1中的至少一个不是氢; 并且如果m = 2且n = 2且R 2是氢并且该分子是2,3,4,6,7,8,9,10-八氢衍生物,则R和R 1中的至少一个不是氢或 其加酸或季盐。