Compounds of formula (I):
(in which: M represents a saturated heterocyclic group having from 5 to 7 ring atoms of which 2 are nitrogen atoms, said group being unsubstituted or being substituted at any of its carbon atoms by Ci - C6 alkyl and/or oxo substituents; A represents a halo-substituted benzhydryl substituent; and B represents certain specific substituted alkyl groups) and salts thereof are valuable for the treatment and prophylaxis of disorders arising from circulatory problems, especially those affecting the brain. They may be prepared by reacting a compound of formula A - M - H with a halo or acyloxy derivative corresponding to the alkyl substituent b which it is desired to introduce.
式(I)化合物(其中:M 代表具有 5 至 7 个环原子(其中 2 个为氮原子)的饱和杂环基团,所述基团未被取代或在其任一碳原子上被 Ci - C6 烷基和/或氧代取代;A 代表卤代二苯甲基取代基;B 代表某些特定的取代烷基)及其盐对于治疗和预防循环系统疾病(尤其是影响大脑的疾病)很有价值。 可通过将式 A - M - H 化合物与希望引入的烷基取代基 b 所对应的卤代或酰氧基衍
生物反应来制备这些化合物。