Pyridine derivatives, process for their preparation and composition containing them
申请人:STERLING DRUG INC.
公开号:EP0109027A1
公开(公告)日:1984-05-23
2-(R,O)-3-Q-5-PY-6-R-pyridine (I) or pharmaceutically acceptable acid-addition salts thereof are useful cardiotonics, where R, is methyl or ethyl, R is hydrogen or lower-alkyl, PY is 4(or 3)-pyridinyl or 4(or 3)-pyridinyl having one or two lower-alkyl substituents, and Q is hydrogen, chloro or COOR' where R' is lower-alkyl, or 0 is cyano only when R is hydrogen. The preparation of I and their cardiotonic use are shown.
2-(R,O)-3-Q-5-PY-6-R-吡啶(I)或其药学上可接受的酸加成盐是有用的强心剂,其中 R 是甲基或乙基,R 是氢或低级烷基,PY 是 4(或 3)-吡啶基或具有一个或两个低级烷基取代基的 4(或 3)-吡啶基,Q 是氢、氯或 COOR'(其中 R' 是低级烷基),或 0 是氰基(仅当 R 是氢时)。I 的制备方法及其强心剂用途如图所示。