申请人:TAKEDA CHEMICAL INDUSTRIES, LTD.
公开号:EP0604945A1
公开(公告)日:1994-07-06
A compound of the formula:
wherein each R¹, R² and R³ is an aliphatic acyl group, X is an amino acid sequence consisting of 1 to 5 amino acid residues which contain at least one acidic amino acid residue, n is an integer of 0 to 4, provided that when n is 0, X has glutamyl-glycyl at its N-terminal and when n is 1 or 2, the acidic amino acid residue is an acidic amino acid residue other than D-glutamyl, or a salt thereof has an activity of remarkably improving anhematopoiesis and is useful as an immuno-stimulating agent having a leukocyte-increasing activity.
式中的化合物:
其中每个 R¹、R² 和 R³ 是脂肪族酰基,X 是由 1 至 5 个氨基酸残基组成的氨基酸序列,其中至少含有一个酸性氨基酸残基,n 是 0 至 4 的整数,条件是当 n 为 0 时,X 的 N 端具有谷氨酰-甘氨酰,当 n 为 1 或 2 时,X 的 N 端具有谷氨酰-甘氨酰、酸性氨基酸残基是除 D-谷氨酰以外的酸性氨基酸残基,或其盐具有显著改善造血功能的活性,可用作具有增加白细胞活性的免疫刺激剂。