申请人:TAKEDA CHEMICAL INDUSTRIES, LTD.
公开号:EP0638588A1
公开(公告)日:1995-02-15
A compound of the formula:
wherein each of R¹ and R² is hydrogen or an aliphatic acyl group, each of R³ and R⁴ is hydrogen or a protecting group, X is an amino acid sequence consisting of 1 to 10 amino acid residues which may be protected, Y is an amino acid sequence consisting of 1 to 5 amino acids residues which may be protected, bounding at a terminal carboxyl group, or a salt thereof has an activity of remarkably improving hematopoietic disorder and is useful as an immuno-stimulating agent or an agent for treating thrombocytopenia.
式中的化合物:
其中R¹和R²各自为氢或脂肪酰基,R³和R⁴各自为氢或保护基,X为由1至10个可被保护的氨基酸残基组成的氨基酸序列、Y 是由 1 至 5 个氨基酸残基组成的氨基酸序列,可被保护,与末端羧基结合,或其盐具有显著改善造血障碍的活性,可用作免疫刺激剂或治疗血小板减少症的药物。