| 摘要 |
The present invention relates to a anticancer agent which is a compound of formula (1),wherein a) A is a divalent group chosen from -S-, -SO-, -SO-, -NH-, N (CH)-, -N (CH-C(O)O-CH-CH)- or -N(CH-COOH)-, an epoxide group, (C-C)-alkylene, -NHCO-, -1,2,3-triazole, -NHSO; b) is Xand Xare identical or different and is O; d) is nand nare identical or different and have the value 0, 1, 2, 3 or 4; as a base or as acid-additive salt, and also as hydrate or solvate. |
