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.
该发明涉及一种作用于中枢神经系统的新肽衍生物,其对应于一般式(I),Glp--X--Y--NH--A(I),其中X为L-诺亮氨酰基、L-亮氨酰基、L-诺缬氨酰基、D-亮氨酰基、L-脯氨酰基、L-2-氨基丁酰基、L-缬氨酰基、L-苏氨酰基、L-异亮氨酰基、L-2-氨基癸酰基、L-环己基丙氨酰基或L-叔丁基丝氨酰基,Y为L-脯氨酰基,或者X为L-组氨酰基,Y为L-同脯氨酰基或D-哌哪酰基,此外A为氢、C.sub.1-10烷基或具有二甲胺取代基的C.sub.1-3烷基,但若X为L-亮氨酰基,则A不是氢,并且其药用上可接受的配合物。这些化合物通过常用的肽化学方法制备。