Methylamine derivatives of the formula: ##STR1## and pharmaceutically acceptable acid addition salts thereof, wherein R.sub.1 and R.sub.3 each represent a hydrogen atom or a straight- or branched-chain alkyl, alkenyl or alkynyl radical containing from 1 to 6 carbon atoms, R.sub.2 represents a straight- or branched-chain alkyl, alkenyl or alkynyl radical containing from 2 to 7 carbon atoms with the proviso that when R.sub.2 represents an alkenyl radical of the formula CH.dbd.CH--R.sub.6 or an alkynyl radical of the formula C.tbd.C--R.sub.6, in which R.sub.6 represents a hydrogen atom or a straight- or branched-chain alkyl radical of 1 to 5 carbon atoms, R.sub.1 and R.sub.3 each represent an atom of hydrogen or an alkyl radical, R.sub.4 and R.sub.5, which are the same or different, each respresent a hydrogen atom, a straight- or branched-chain alkyl, alkenyl or alkynyl radical containing from 1 to 5 carbon atoms or an .omega.-hydroxyalkyl radical containing from 2 to 5 carbon atoms or R.sub.4 and R.sub.5, when they are taken together represent an alkylene radical containing from 2 to 6 carbon atoms, an alkylidene radical containing from 1 to 5 carbon atoms or the radical --CH.sub.2 --CH.sub.2 --O--CH.sub.2 --CH.sub.2 --, R.sub.1, R.sub.2 and R.sub.3 being such that the trisubstituted methylamine radical possesses no more than 13 carbon atoms. They are useful for treating Parkinson's disease and for correcting extra-pyramidal disturbances provoked by neuroleptics.
甲基胺衍
生物的公式为:##STR1##以及药学上可接受的酸加成盐,其中R.sub.1和R.sub.3各自代表一个氢原子或一个含有1至6个碳原子的直链或支链烷基、烯基或炔基自由基,R.sub.2代表一个含有2至7个碳原子的直链或支链烷基、烯基或炔基自由基,条件是当R.sub.2代表一个公式为CH.dbd.CH--R.sub.6的烯基自由基或一个公式为C.tbd.C--R.sub.6的炔基自由基时,其中R.sub.6代表一个氢原子或一个含有1至5个碳原子的直链或支链烷基自由基,R.sub.1和R.sub.3各自代表一个氢原子或一个烷基自由基,R.sub.4和R.sub.5相同或不同,各自代表一个氢原子,一个含有1至5个碳原子的直链或支链烷基、烯基或炔基自由基,或一个含有2至5个碳原子的ω-羟基烷基自由基,或者R.sub.4和R.sub.5共同代表一个含有2至6个碳原子的亚烷基自由基,一个含有1至5个碳原子的亚烷基自由基或自由基--CH.sub.2 --CH.sub.2 --O--CH.sub.2 --CH.sub.2 --,R.sub.1、R.sub.2和R.sub.3使得三取代甲基胺自由基最多含有13个碳原子。它们可用于治疗帕
金森病,并用于纠正由神经阻滞剂引起的锥体外系扰动。