Novel ethenylphenol indoles of the formula ##STR1## wherein R and R.sub.1 are individually selected from the group consisting of hydrogen, alkyl of 1 to 5 carbon atoms, cycloalkyl of 3 to 7 carbon atoms, cycloalkylalkyl of 4 to 7 carbon atoms and aralkyl of 7 to 12 carbon atoms optionally substituted with 1 to 3 members of the group consisting of halogen, methyl, ethyl, methoxy, ethoxy, methylthio, --CF.sub.3, --NH.sub.2 and --NO.sub.2 or R and R.sub.1 together with the nitrogen atom form an optionally unsaturated heterocycle optionally containing a second heteroatom selected from the group consisting of --O--, --S-- and ##STR2## R' is hydrogen or alkyl of 1 to 5 carbon atoms, a together with X is .dbd.0 and b is hydrogen or a together with b is a carbon-carbon bond and X is hydrogen, the dotted line indicates the possibility of a double bond with the compounds having the trans configuration if a double bond, A is selected from the group consisting of ##STR3## and --(CH.sub.2).sub.n --, n is 2,3,4 or 5, R.sub.2 is selected from the group consisting of hydrogen and alkyl of 1 to 5 carbon atoms with the proviso that R and R.sub.1 are not both hydrogen when A is ##STR4## and their non-toxic, pharmaceutically acceptable acid addition salts having anti-arrhythmic and anti hypertensive properties and the property of blocking slow calcium-sodium channels and novel intermediates.
该式中的新型
乙烯基苯酚吲哚,其中R和R.sub.1分别从氢、1到5个碳原子的烷基、3到7个碳原子的环烷基、4到7个碳原子的环烷基烷基和7到12个碳原子的芳基中选取,可选地取代1到3个卤素、甲基、乙基、甲氧基、乙氧基、甲
硫基、-CF.sub.3、-NH.sub.2和-NO.sub.2或R和R.sub.1与氮原子一起形成一个可选的不饱和杂环,可选地包含从-O-、-S-和##STR2##中选取的第二杂原子,R'为氢或1到5个碳原子的烷基,a与X一起为.dbd.0且b为氢或a与b一起为碳-碳键,X为氢,虚线表示具有反式构型的化合物如果有一个双键,A从##STR3##和--(CH.sub.2).sub.n --中选取,n为2、3、4或5,R.sub.2从氢和1到5个碳原子的烷基中选取,R和R.sub.1不同时为氢当A为##STR4##时,以及其无毒、药用可接受的酸盐,具有抗心律失常和抗高血压性质以及阻断慢性
钙钠通道的性质和新型中间体。