申请人:Pfizer Inc.
公开号:US04370328A1
公开(公告)日:1983-01-25
1-(3- or 4-substituted piperidino)phthalazines of the formula ##STR1## wherein R is C.sub.1-6 alkyl; Y is a 3- or 4-position substituent and is --X-(CHR.sup.1).sub.m -Z wherein R.sup.1 is hydrogen or C.sub.1-6 alkyl; m is 1 or 2; X is oxygen or a direct link provided that when m is 1, X is a direct link; and Z is --N(R.sup.2)COR.sup.3, --N(R.sup.2)COOR.sup.3, --N(R.sup.2)SO.sub.2 R.sup.3, --N(R.sup.2)SO.sub.2 NR.sup.4 R.sup.5, --N(R.sup.2)SOR.sup.3, --N(R.sup.2)CONR.sup.4 R.sup.5 or --OCONR.sup.4 R.sup.5, wherein R.sup.2 and R.sup.5 are each independently hydrogen or C.sub.1-6 alkyl; R.sup.3 is C.sub.1-6 alkyl, phenethyl, benzyl, C.sub.3-7 cycloalkyl, phenyl or pyridyl; R.sup.4 is hydrogen or R.sup.3 ; provided that when X is a direct link, R.sup.3 or R.sup.4 is C.sub.3-7 cycloalkyl; the pharmaceutically acceptable acid addition salts thereof; processes for their preparation; and their use as cardiac stimulants and phosphodiesterase inhibitors.
1-(3-或4-取代哌啶基)邻苯二嗪的结构式为##STR1##其中R为C.sub.1-6烷基;Y为3-或4-位取代基,为--X-(CHR.sup.1).sub.m -Z,其中R.sup.1为氢或C.sub.1-6烷基;m为1或2;X为氧或直链,但当m为1时,X为直链;Z为--N(R.sup.2)COR.sup.3,--N(R.sup.2)COOR.sup.3,--N(R.sup.2)SO.sub.2 R.sup.3,--N(R.sup.2)SO.sub.2 NR.sup.4 R.sup.5,--N(R.sup.2)SOR.sup.3,--N(R.sup.2)CONR.sup.4 R.sup.5或--OCONR.sup.4 R.sup.5,其中R.sup.2和R.sup.5各自独立地为氢或C.sub.1-6烷基;R.sup.3为C.sub.1-6烷基,苯乙基,苄基,C.sub.3-7环烷基,苯基或吡啶基;R.sup.4为氢或R.sup.3;但当X为直链时,R.sup.3或R.sup.4为C.sub.3-7环烷基;其药学上可接受的酸盐;其制备方法;以及它们作为心脏刺激剂和磷酸二酯酶抑制剂的用途。