The invention relates to new indolo[2,3-g]cyclopent[a]indolizine derivatives of the formulae (II) ##STR1## and/or (III) ##STR2## wherein W is alkoxycarbonyl having from one to four carbon atoms in the alkoxy moiety or cyano, R.sub.1 is hydrogen or alkyl having from one to four carbon atoms, G is a >CH.sub.2 or >C.dbd.O group, and X and Y each stands for hydrogen or together represent a C--C bond. According to another aspect of the invention there is provided a process for the preparation of the above compounds, which are pharmaceutically active, in particular, possess valuable gastric acid secretion inhibiting activity. Pharmaceutical compositions containing compounds of the formulae (II) and/or (III) are also within the scope of the invention.
该发明涉及新的indolo[2,3-g]cyclopent[a]indolizine衍
生物,其
化学式为(II)和/或(III),其中W为在烷氧基团中具有一到四个碳原子的烷氧羰基或
氰基,R.sub.1为氢或具有一到四个碳原子的烷基,G为>CH.sub.2或>C.dbd.O基团,X和Y分别代表氢原子或一起表示一个碳-碳键。根据该发明的另一个方面,提供了制备上述化合物的过程,这些化合物在药理上具有活性,特别是具有有价值的胃酸分泌抑制活性。含有
化学式(II)和/或(III)化合物的药物组合物也在该发明的范围内。