申请人:Richter Gedeon Vegyeszeti Gyar Rt.
公开号:US04299821A1
公开(公告)日:1981-11-10
The invention relates to new peptide derivatives which act on the central nervous system and correspond to the general formula (I), Glp--X--Y--NH--A (I) wherein X is L-norleucyl, L-leucyl, L-norvalyl, D-leucyl, L-prolyl, L-2-aminobutyryl, L-valyl, L-threonyl, L-isoleucyl, L-2-aminodecanoyl, L-cyclohexylalanyl or L-tert.-butyl-seryl group and Y is L-prolyl group, or X is L-histidyl group and Y is L-homoprolyl or D-pipecolyl group, furthermore A is hydrogen, a C.sub.1-10 alkyl group or a C.sub.1-3 alkyl group having a dimethylamino substituent, with the proviso that if X is L-leucyl group, A is other than hydrogen, and pharmaceutically acceptable complexes thereof. These compounds are prepared by methods commonly applied in the peptide chemistry.
本发明涉及一种新的肽衍生物,其作用于中枢神经系统,对应于通式(I),Glp--X--Y--NH--A(I),其中X是L-去氨基亮氨酸,L-亮氨酸,L-去氨基缬氨酸,D-亮氨酸,L-脯氨酸,L-2-氨基丁酰基,L-缬氨酸,L-苏氨酸,L-异亮氨酸,L-2-氨基癸酰基,L-环己基丙氨酸或L-叔丁基丝氨酸基团,Y是L-脯氨酸基团,或X是L-组氨酸基团,Y是L-同型脯氨酸或D-哌嗪酰基团,此外A是氢,C.sub.1-10烷基或具有二甲基氨基取代基的C.sub.1-3烷基,但若X为L-亮氨酸基团,则A不是氢,且其药学上可接受的复合物。这些化合物是通过肽化学中常用的方法制备的。