Novel N-(trimethoxybenzyl)-piperazines of the formula: ##STR1## wherein R is trifluoromethyl, hydroxy, nitro, halogen, lower-alkyl, or lower-alkoxy; R' is hydrogen, trifluoromethyl, halogen, lower-alkyl, or lower-alkoxy; R" is hydrogen or lower-alkoxy, or wherein R and either R' or R" together stand for lower-alkylene dioxy, and acid addition salts thereof, a method of preparing same, pharmaceutical compositions thereof, and a method of enhancing circulation, especially cerebrovascular circulation, therewith, are disclosed.
                            公开了式子为:##STR1## 的小说N-(
三甲氧基苄基)-
哌嗪,其中R为三
氟甲基,羟基,硝基,卤素,低烷基或低烷氧基; R'为氢,三
氟甲基,卤素,低烷基或低烷氧基; R"为氢或低烷氧基,或其中R和R'或R"中的任意一个代表低烷二氧基,以及其酸加成盐,制备方法,制药组合物和增强循环的方法,特别是脑血管循环。