5-HT.sub.3 receptor antagonist compounds of the formula ##STR1## in which Z is --O--, --S-- or --N(R.sup.2)--; R.sup.1 and R.sup.2 are independently selected from hydrogen and lower alkyl or are together --(CH.sub.2).sub.n -- wherein n is 2 to 4; and R.sup.3 is selected from ##STR2## and the pharmaceutically acceptable salts, individual isomers, compositions, and methods of use thereof.
公式为##
STR1##的5-HT.sub.3受体
拮抗剂化合物,其中Z为--O--, --S--或--N(R.sup.2)--; R.sup.1和R.sup.2分别选择
氢和低烷基或一起为--(CH.sub.2).sub.n--,其中n为2至4;R.sup.3选择自##
STR2##和其药学上可接受的盐、单个异构体、组合物及其使用方法。