申请人:Dr. Karl Thomae GmbH
公开号:US04656171A1
公开(公告)日:1987-04-07
Compounds of the formula ##STR1## wherein A, B, C and D are each independently --N.dbd. or --CH.dbd., provided, however, that at least two of them must be --N.dbd., and when A and C are both --N.dbd., at least one or both of B and D must be --N.dbd.; and R.sub.1, R.sub.2 and R.sub.3 are substituents of diverse types; tautomers thereof; and non-toxic, pharmacologically acceptable acid addition salts thereof. The compounds are useful as cardiotonics.
公式为##STR1##的化合物,其中A、B、C和D各自独立地为--N.dbd.或--CH.dbd.,但必须至少有两个为--N.dbd.,且当A和C均为--N.dbd.时,至少一个或两个B和D必须为--N.dbd.;而R.sub.1、R.sub.2和R.sub.3为不同类型的取代基;它们的互变异构体;以及其非毒性、药理学上可接受的酸盐。这些化合物可用作心脏强心剂。