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    • 7. 发明授权
    • Tetrapeptides as antitumor agents
    • 四肽作为抗肿瘤剂
    • US5939527A
    • 1999-08-17
    • US688335
    • 1996-07-30
    • Teresa BarlozzariAndreas HauptBernd JanssenChristian GriesingerDaniel BelikMichael Boretzky
    • Teresa BarlozzariAndreas HauptBernd JanssenChristian GriesingerDaniel BelikMichael Boretzky
    • A61K38/00A61P35/00C07K4/00C07K5/02C07K5/00
    • C07K5/0205A61K38/00
    • The present invention provides anti-tumor peptides of Formula I,A--B--NR.sup.3 --CHD--CH(OCH.sub.3)--CH.sub.2 CO--E--K (I),and the acid salts thereof. A is an amino acid residue selected from the group consisting of N-methyl-D-prolyl, N-methyl-D-homoprolyl and N,N-dimethyl-2-ethylphenylglycyl, or an amino acid residue of the formula R.sup.1 R.sup.2 N--CHX--CO, wherein R.sup.1 is a-methyl group or an ethyl group, R.sup.2 is a hydrogen atom, a methyl group or an ethyl group, and X is an alkyl group. B is an amino acid residue selected from the group consisting of valyl, isoleucyl, leucyl, and 2-t-butylglycyl. R.sup.3 is a hydrogen atom or a methyl group. D is a normal or branched C.sub.2 -C.sub.5 -alkyl group. E is an amino acid residue selected from the group consisting of prolyl, homoprolyl, 5-methylprolyl, and phenylalanyl, or E is a residue derived from an amino acid comprising a pyrrolidine group. K is an alkoxy group or an amino group.An additional embodiment of the present invention is a method for treating a malignancy in a mammal, such as a human, comprising administering to the mammal an effective amount of a compound or compounds of Formula I in a pharmaceutically acceptable composition.
    • 本发明提供式I,A-B-NR3-CHD-CH(OCH3)-CH2CO-E-K(I)的抗肿瘤肽及其酸式盐。 A是选自N-甲基-D-脯氨酰基,N-甲基-D-正戊基和N,N-二甲基-2-乙基苯基甘氨酰或式R 1 R 2 N-CHX-的氨基酸残基的氨基酸残基, CO,其中R1是α-甲基或乙基,R2是氢原子,甲基或乙基,X是烷基。 B是选自缬氨酰基,异亮氨酰基,亮氨酰基和2-叔丁基甘氨酰基的氨基酸残基。 R3是氢原子或甲基。 D是正链或支链C 2 -C 5 - 烷基。 E是选自脯氨酰基,同环戊基,5-甲基脯氨酰基和苯丙氨酰基的氨基酸残基,或E是衍生自包含吡咯烷基的氨基酸的残基。 K是烷氧基或氨基。 本发明的另一个实施方案是用于治疗哺乳动物(例如人)的恶性肿瘤的方法,包括向所述哺乳动物施用有效量的药学上可接受的组合物中的式I化合物或化合物。