With a view to carrying out a detailed pharmacological examination of the &ects of various 2- alkyl groups on the action of tetrahydroisoquinolines, three series of 2-alkyl-1, 2, 3, 4- tetrahydroisoquinolines were prepared. One series has no nuclear substituents, the second carries 6, 7-dimethoxy groups and the third has 6, 7-dihydroxy groups. Hydrochlorides were chosen for pharmacological reasons. In no case was a substituent present in the 1- ...
