Compounds of the Formula: ##STR1## wherein: R.sup.1 and R.sup.2 are independently hydrogen or lower alkyl, or when taken together with the carbon to which they are attached are cycloalkyl of 3 to 8 carbon atoms; R.sup.3 is fluoro lower alkyl; cyano; or nitro; R.sup.4 is ##STR2## R.sup.5 and R.sup.6 are independently hydrogen or lower alkyl; and R.sup.7 is --NR.sup.8 R.sup.9 ; wherein: R.sup.8 is hydrogen; lower alkyl; lower alkoxy; hydroxy; or hydroxy lower alkyl; and R.sup.9 is hydrogen; lower alkyl; hydroxy lower alkyl; --SO.sub.2 R.sup.10 ; --CO.sub.2 R.sup.10 ; --C(O)NR.sup.11 R.sup.12 ; --C(S)NR.sup.11 R.sup.12 ; or --C(O)R.sup.12 ; wherein R.sup.10 is lower alkyl; R.sup.11 is hydrogen or lower alkyl; and R.sup.12 is hydrogen, lower alkyl, or fluoro lower alkyl; with the proviso that R.sup.8 and R.sup.9 cannot both be hydrogen; and the pharmaceutically acceptable salts thereof. The compounds and salts exhibit useful pharmacological properties, including potassium channel activating properties and 5-lipoxygenase inhibiting properties, and in particular are useful as smooth muscle relaxants and bronchodilators.
该公式化合物如下:##STR1## 其中:R.sup.1和R.sup.2独立地为氢或低碳基,或者与它们连接的碳一起形成3到8个碳原子的环烷基;R.sup.3为
氟代低碳基;
氰基;或硝基;R.sup.4为##STR2## R.sup.5和R.sup.6独立地为氢或低碳基;R.sup.7为--NR.sup.8 R.sup.9;其中:R.sup.8为氢;低碳基;低烷氧基;羟基;或羟基低碳基;R.sup.9为氢;低碳基;羟基低碳基;--SO.sub.2 R.sup.10 ;--CO.sub.2 R.sup.10 ;--C(O)NR.sup.11 R.sup.12 ;--C(S)NR.sup.11 R.sup.12 ;或--C(O)R.sup.12 ;其中R.sup.10为低碳基;R.sup.11为氢或低碳基;R.sup.12为氢、低碳基或
氟代低碳基;但是R.sup.8和R.sup.9不能同时为氢;以及其药学上可接受的盐。这些化合物和盐具有有用的药理学特性,包括
钾通道激活特性和5-脂氧合酶抑制特性,特别是作为平滑肌松弛剂和支气管扩张剂时非常有用。