Prostaglandin analogues of the formula: ##STR1## wherein A represents a grouping of the formula: ##STR2## X represents trans-vinylene or ethylene and Y represents cis-vinylene or ethylene, R represents hydrogen or alkyl of 1 through 12 carbon atoms, R.sup.1, R.sup.2 and R.sup.3 represent hydrogen, or alkyl of 1 through 12 carbon atoms or an aryl group, with the proviso that at least one of the symbols R.sup.1, R.sup.2 and R.sup.3 represents an alkyl or aryl group, are new compounds possessing useful pharmacological properties; they are especially useful for the treatment of gastric ulceration.
公式为:##
STR1##其中A代表公式:##
STR2##X代表顺式-
乙烯基或
乙烯基,Y代表顺式-
乙烯基或
乙烯基,R代表
氢或1至12个
碳原子的烷基,R.sup.1,R.sup.2和R.sup.3代表
氢,或1至12个
碳原子的烷基或芳基,但至少有一个符号R.sup.1,R.sup.2和R.sup.3代表烷基或芳基,这些新化合物具有有用的药理学性质;它们特别适用于治疗胃溃疡。