申请人:Sterling Drug Inc.
公开号:US04515797A1
公开(公告)日:1985-05-07
1-R.sub.1 -3-amino-5-(3-R'-4-R"-phenyl)-6-R-2(1H)-pyridinones or salts thereof, which are useful as cardiotonics, where R.sub.1 is hydrogen, lower-alkyl, or lower-hydroxyalkyl, R is hydrogen or lower-alkyl, and, R' and R" are each hydrogen, hydroxy or amino at least one of R' or R" being other than hydrogen, are prepared by reacting the corresponding 3-carbamyl compound with a reagent capable of converting carbamyl to amino or by first reacting the corresponding 3-carbamyl compound where R' and R" are each hydrogen, nitro or lower-alkoxy at least one of R' and R" being other than hydrogen with a reagent capable of converting carbamyl to amino and then reacting the resulting 3-amino compound where R' and/or R" are/is lower-alkoxy and/or nitro with a reagent capable of converting lower-alkoxy to hydroxy and/or with a reagent capable of converting nitro to amino. Preparation of the corresponding 3-carbamyl and 3-cyano compounds is shown, the latter including cardiotonically active novel 1-R.sub.1 -1,2-dihydro-5-(3-R.sub.2 -4-R.sub.3 -phenyl)-6-R-nicotinonitriles where R.sub.1 and R are defined as above, and R.sub.2 and R.sub.3 have the above given definitions for R' and R" or where R.sub.2 is nitro and R.sub.3 is hydroxy. Also shown are cardiotonic compositions and cardiotonic method of use of above-said compounds.
1-R.sub.1 -3-氨基-5-(3-R'-4-R"-苯基)-6-R-2(1H)-吡啶酮或其盐,可用作心脏强心剂,其中R.sub.1是氢、低烷基或低羟基烷基,R是氢或低烷基,R'和R"分别是氢、羟基或氨基,其中R'或R"至少有一个不是氢,通过将相应的3-氨基甲酰化合物与能够将氨基甲酰转化为氨基的试剂反应制备,或者首先将R'和R"分别是氢、硝基或低烷氧基,其中R'和R"中至少有一个不是氢的相应的3-氨基甲酰化合物与能够将氨基甲酰转化为氨基的试剂反应,然后将所得的3-氨基化合物与能够将低烷氧基转化为羟基和/或能够将硝基转化为氨基的试剂反应,其中R'和/或R"是低烷氧基和/或硝基。显示了相应的3-氨基甲酰和3-氰基化合物的制备,后者包括具有心脏强心活性的新颖的1-R.sub.1 -1,2-二氢-5-(3-R.sub.2 -4-R.sub.3 -苯基)-6-R-烟酰腈,其中R.sub.1和R如上所定义,R.sub.2和R.sub.3具有上述给定的R'和R"的定义,或者其中R.sub.2是硝基,R.sub.3是羟基。还显示了心脏强心剂组合物和上述化合物的心脏强心方法的用途。