Compounds of the formula ##STR1## wherein R.sub.1 is hydrogen or alkyl of 1 to 4 carbon atoms; R.sub.2 is 2-, 3- or 4-pyridyl, phenyl or mono- or disubstituted phenyl, where the substituents are each individually alkoxy of 1 to 2 carbon atoms, fluorine, chlorine, bromine, trifluoromethyl, alkyl or 1 to 4 carbon atoms, hydroxyl or nitro; and R.sub.3 and R.sub.4 are each independently hydrogen or alkyl of 1 to 4 carbon atoms; or R.sub.3 and R.sub.4, together with each other and the nitrogen atom to which they are attached, form an unsubstituted or methyl-substituted, saturated 5- or 6-membered heterocycle which may contain an additional oxygen or nitrogen heteroatom, or form an imidazole ring; where the aminomethyl substituent is attached to the 4- or 5-position or the pyrrolidine ring, and non-toxic, pharmacologically acceptable acid addition salts thereof. The compounds as well as the salts are useful as nootropics and antihypoxics.
化合物的结构式为## STR1 ##,其中R.sub.1是氢或1至4个碳原子的烷基; R.sub.2是2-,3-或4-
吡啶基,苯基或单取代或双取代苯基,其中取代基分别是1至2个碳原子的烷氧基,
氟,
氯,
溴,三
氟甲基,1至4个碳原子的烷基,羟基或硝基; R.sub.3和R.sub.4各自独立地是氢或1至4个碳原子的烷基; 或者R.sub.3和R.sub.4与它们附着的氮原子一起形成未取代或取代甲基的饱和5-或6-成员杂环,该杂环可以包含额外的氧或氮杂原子,或形成
咪唑环; 其中
氨甲基取代基附着于4-或5-位置或
吡咯烷环,以及其非毒性、药理学上可接受的酸盐。这些化合物以及盐对于改善认知和抗缺氧作用有用。