Tripeptides and tripeptide derivatives for the treatment of postlesional diseases of the nervous system
申请人:Rapin Jean
公开号:US20050080016A1
公开(公告)日:2005-04-14
The invention relates to the use of specific tripeptides for the treatment of postlesional diseases of ischemic, traumatic or toxic origin. The tripeptide derivatives satisfy the following formula (I): (see formula I as in paper form) wherein X represents OH, (C
1-5
) alkoxy, NH
2
, NH—C
1-5
-alkyl, N(C
1-5
alkyl)
2
; R
1
is a residue derived from one of the amino acids Phe, Tyr, Trp, Pro, which each may be optionally substituted with one or more (C
1-5
) alkoxy groups, (C
1-5
) alkyl groups or halogen atoms, as well as Ala, Val, Leu or Ile; R
2
is a residue derived from one of the amino acids Gly, Ala, Ile, Val, Ser, Thr, and Pro; Y
1
and Y
2
independently from each other represent H or (C
1-5
) alkyl; R
3
and R
4
independently from each other represent H, OH, (C
1-5
) alkyl or (C
1-5
) alkoxy, provided that R
3
and R
4
are not both OH or (C
1-5
) alkoxy; and R
5
represents H, OH, (C
1-5
) alkyl or (C
1-5
) alkoxy; or a pharmaceutically acceptable salt thereof.
本发明涉及使用特定三肽治疗缺血性、创伤性或毒性后损伤性疾病。该三肽衍生物满足以下式子(I):(见论文中的式子I)
其中,X代表OH、(C1-5)烷氧基、NH2、NH-C1-5-烷基、N(C1-5烷基)2;R1是来自苯丙氨酸、酪氨酸、色氨酸、脯氨酸中的一种氨基酸残基,每个氨基酸残基都可以选择性地用一个或多个(C1-5)烷氧基、(C1-5)烷基或卤原子取代,以及丙氨酸、缬氨酸、亮氨酸或异亮氨酸;R2是来自甘氨酸、丙氨酸、异亮氨酸、缬氨酸、丝氨酸、苏氨酸和脯氨酸中的一种氨基酸残基;Y1和Y2分别表示H或(C1-5)烷基;R3和R4分别表示H、OH、(C1-5)烷基或(C1-5)烷氧基,前提是R3和R4不同时为OH或(C1-5)烷氧基;R5表示H、OH、(C1-5)烷基或(C1-5)烷氧基;或其药学上可接受的盐。