Compounds which are &agr;-halogenoacryloyl distamycin derivatives of formula (I) wherein R
1
is a bromine or chlorine atom; R
2
is a distamycin or distamycin-like framework as set forth in the specification; or a pharmaceutically acceptable salt thereof; are cytotoxic agents particularly effective in the treatment of tumors over expressing GSH/GSTs system and which are poorly responsive or even resistant to conventional antitumor therapies.
式 (I) 的&agr;-卤代
丙烯酰基多柔霉素衍
生物的化合物,其中 R
1
是
溴原子或
氯原子;R
2
或其药学上可接受的盐;是治疗过度表达 GSH/GSTs 系统、对传统抗肿瘤疗法反应不佳甚至耐药的肿瘤特别有效的细胞毒剂。