申请人:ZAIDAN HOJIN BISEIBUTSU KAGAKU KENKYU KAI
公开号:EP0617009A1
公开(公告)日:1994-09-28
A novel amino acid derivative represented by general formula (I) and a salt thereof have been synthesized and it has been found that they promote the growth and physiological action of the T cells of mammals and have an immunomodulator effect and either an antitumor or a carcinostatic effect, and that they also have the effect of promoting the growth of hematopoietic stem cells wherein Y represents 0 or 1; R¹ represents unsusbstituted C₁-C₈ alkyl, etc.; R² represents hydrogen, C₁-C₅ alkyl, etc.; R³ represents hydrogen, C₁-C₈ alkyl, etc.; R⁴ represents hydrogen, C₁-C₃ alkyl, etc.; and R⁵ represents -OR⁴², -NR⁴³R⁴⁴, etc.
合成了通式(I)代表的新型氨基酸衍生物及其盐,发现它们能促进哺乳动物 T 细胞的生长和生理作用,具有免疫调节作用和抗肿瘤或致癌作用,还具有促进造血干细胞生长的作用 其中 Y 代表 0 或 1;R¹ 代表未取代的 C₁-C₈烷基等;R² 代表氢、C₁-C₅烷基等;R³ 代表氢、C₁-C₈烷基等。R²代表氢、C₁-C₅烷基等;R³代表氢、C₁-C₈烷基等;R⁴ 代表氢、C₁-C₃烷基等;R⁵代表-OR⁴²、-R⁴³R⁴⁴等。