Disclosed are derivatives of isosorbid mononitrate and pharmaceutically acceptable salts thereof which have a vasodilator activity with a reduced tolerance effect, having the general formula (I) wherein A and B represent independently any of the groups NO2 and-CO-R, Z being an atom of oxygen or sulfur, and R being optionally substituted C1-C4 alkyl, aryl or aralkyl group or the group (a) wherein R1 is hydrogen or optionally substituted C1-C4 alkyl, aryl or aralkyl group,so that always either A or B is NO2 but never both at the same time, when Z is a sulfur atom R is optionally substituted C1-C4 alkyl, aryl or aralkyl group, and when Z is an oxygen atom R is the group (a).
                            本发明公开了单
硝酸异山梨醇酯的衍
生物及其药学上可接受的盐,它们具有血管扩张活性,且耐受性降低,其通式为(I),其中A和B独立地代表
NO2和-CO-R基团中的任一基团,Z为氧原子或
硫原子,R为任选取代的C1-C4烷基、芳基或芳烷基基团或基团(a),其中R1为氢或任选取代的C1-C4烷基、芳基或芳烷基基团、当 Z 为
硫原子时,R 为任选取代的 C1-C4 烷基、芳基或芳烷基;当 Z 为氧原子时,R 为(a)基团。