申请人:Nisshin Flour Milling Co., Ltd.
公开号:EP0931792A1
公开(公告)日:1999-07-28
A depsipeptide containing a non-natural amino acid(s) having the formula (1)
wherein R1 represents a C5-C20 alkyl group and others; R2 represents -O-CO-CH(R5)-X-CH(R6)-NH- (wherein X represents N(R7)-CO, CH2-CO, CH2-CH2 and others, R5, R6, and R7 represent a hydrogen atom or a C1-C6 alkyl group); R3 represents
(wherein Y represents N(R12)-CO, N(R13)-CH2, CH2-CO, CH2-CH2 and others, n represents an integer of 1-3, R9, R10, R12 and R13 represent a hydrogen atom or a straight or branched C1-C6 alkyl group and R11 represents a protecting group for an amine); R4 represents a hydroxyl group, a straight or branched C1-C6 alkoxy group, a benzyloxy group, A, A-B or -NH-CH(R14)-Z-CH(R15)-COR16 (wherein Z represents CH2-N(R17), CO-CH2, CO-N(R18), CH2-CH2 and others, R14, R15, R17 and R18 represent a hydrogen atom or a straight or branched C1-C6 alkyl group, R16 represents a hydroxyl group, a straight or branched C1-C6 alkoxy group or a benzyloxy group); and A and B represent an amino acid residue or an N-methyl derivative thereof.
The above depsipeptides have a promoting activity on the production of apolipoprotein E, and are useful as a therapeutic agent for neurologic damages, especially dementia, and hyperlipemia.
一种含有非天然氨基酸的去肽,其式为(1)
其中 R1 代表 C5-C20 烷基及其它;R2 代表 -O-CO-CH(R5)-X-CH(R6)-NH-(其中 X 代表 N(R7)-CO、CH2-CO、CH2-CH2 及其它,R5、R6 和 R7 代表氢原子或 C1-C6 烷基);R3 代表
(其中 Y 代表 N(R12)-CO、N(R13)-CH2、CH2-CO、CH2-CH2 及其他,n 代表 1-3 的整数,R9、R10、R12 和 R13 代表氢原子或直链或支链 C1-C6 烷基,R11 代表胺的保护基团);R4 代表羟基、直链或支链 C1-C6 烷氧基、苄氧基、A、A-B 或-NH-CH(R14)-Z-CH(R15)-COR16(其中 Z 代表 CH2-N(R17)、CO-CH2、CO-N(R18)、CH2-CH2 及其他、R14、R15、R17 和 R18 代表氢原子或直链或支链 C1-C6 烷基,R16 代表羟基、直链或支链 C1-C6 烷氧基或苄氧基);A 和 B 代表氨基酸残基或其 N-甲基衍生物。
上述去肽类化合物具有促进脂蛋白 E 生成的活性,可用作神经系统损伤(尤其是痴呆症)和高脂血症的治疗剂。