申请人:Boehringer Ingelheim KG
公开号:US04546102A1
公开(公告)日:1985-10-08
Compounds of the formula ##STR1## wherein R.sub.1 is hydrogen, alkyl of 1 to 4 carbon atoms or trifluoromethyl; R.sub.2, R.sub.3 and R.sub.4 are each independently hydrogen, methyl or ethyl; R.sub.5 is hydrogen, alkyl of 1 to 8 carbon atoms, phenyl-(alkyl of 1 to 8 carbon atoms), cycloalkyl of 3 to 7 carbon atoms, (alkoxy of 1 to 4 carbon atoms) carbonyl-methyl, phenyl, substituted phenyl, naphthyl or substituted naphthyl; or R.sub.4 and R.sub.5, together with each other, are alkylene of 4 to 5 carbon atoms, optionally interrupted by --O-- or --NR.sub.6 --, where R.sub.6 is alkyl of 1 to 4 carbon atoms; and non-toxic, pharmacologically acceptable acid addition salts thereof. The compounds as well as their salts are useful as cardiotonics.
式为##STR1##的化合物,其中R.sub.1是氢、1至4个碳原子的烷基或三氟甲基;R.sub.2、R.sub.3和R.sub.4各自独立地是氢、甲基或乙基;R.sub.5是氢、1至8个碳原子的烷基、苯基-(1至8个碳原子的烷基)、3至7个碳原子的环烷基、(1至4个碳原子的烷氧基)甲酰基甲基、苯基、取代苯基、萘基或取代萘基;或者R.sub.4和R.sub.5互相结合,是4至5个碳原子的亚烷基,可选地被--O--或--NR.sub.6 --中断,其中R.sub.6是1至4个碳原子的烷基;以及其非毒性、药理学上可接受的酸盐。这些化合物及其盐可用作心力衰竭药。