Amino acid derivatives
    29.
    发明授权
    Amino acid derivatives 失效
    氨基酸衍生物

    公开(公告)号:US06245810B1

    公开(公告)日:2001-06-12

    申请号:US09106454

    申请日:1998-06-30

    IPC分类号: A61K3124

    摘要: A novel amino acid derivative represented by the general formula (I) shown below or a salt thereof have now been provided by chemical synthesis, and it has been found that these new compounds stimulate proliferation and physiological activities of the T cells of mammals, have an immunomodulating activity and also have an antitumor activity or a carcinostatic activity. It has also been found that these new compounds have an effect of stimulating the proliferation of hematopoietic stem cells. wherein y is 0 or 1; R1 represents an unsubstituted C1-C8 alkyl group or others; R2 represents a hydrogen atom, a C1-C5 alkyl group or others; R3 represents a hydrogen atom, a C1-C8 alkyl group or others; R4 represents a hydrogen atom, a C1-C3 alkyl group or others; R5 represents a group —OR42, a group  or others.

    摘要翻译: 现在已经通过化学合成提供了由下述通式(I)表示的新型氨基酸衍生物或其盐,并且已经发现这些新化合物刺激哺乳动物T细胞的增殖和生理活性,具有 免疫调节活性,也具有抗肿瘤活性或制癌活性。 还发现这些新化合物具有刺激造血干细胞增殖的作用,其中0或1; R1代表未取代的C 1 -C 8烷基或其它; R 2表示氢原子,C 1 -C 5烷基 基团或其它基团; R 3表示氢原子,C 1〜C 8烷基等; R 4表示氢原子,C 1〜C 3烷基等; R 5表示基团-OR 42,基团等。