A series of 1,2-bis(hydroxymethyl)pyrrolo[1,2-f]phenanthridine derivatives and their alkyl (ethyl and isopropyl) carbamates and 12,13-bis(hydroxymethyl)-9,14-dihydro-dibenzo[f,h]pyrrolo[1,2-b]isoquinoline derivatives were synthesized for antiproliferative evaluation. The preliminary antitumour studies revealed that these two types of bis(hydroxymethyl) derivatives showed significant antitumour activities and were able to inhibit the growth of various human tumour cell lines in vitro. Several of the derivatives were demonstrated to cause DNA interstrand cross-links by an alkaline agarose gel shifting assay. These conjugates were cytotoxic to a variety of cancer cell lines by inducing DNA damage, delaying cell cycle progression in the G2/M phase and triggering apoptosis. Compound 21a, dissolved in a vehicle suitable for intravenous administration, was selected for antitumour studies in animal models. We demonstrated that at a dose that did not cause body weight loss in mice, compound 21a could significantly suppress the growth of tumour xenografts of human lung cancer H460 and colorectal cancer HCT-116 cells in nude mice. Our present results confirm the antitumour activities of these conjugates.

一系列1,2-双（羟甲基）吡咯并[1,2- f ]菲啶衍生物及其烷基（乙基和异丙基）氨基甲酸酯和12,13-双（羟甲基）-9,14-二氢-二苯并[ f，合成了h ]吡咯并[1,2- b ]异喹啉衍生物用于抗增殖评价。初步的抗肿瘤研究表明，这两种类型的双（羟甲基）衍生物显示出显着的抗肿瘤活性，并能够在体外抑制各种人类肿瘤细胞系的生长。。通过碱性琼脂糖凝胶迁移试验证明了几种衍生物引起DNA链间交联。这些结合物通过诱导DNA损伤，延迟G2 / M期的细胞周期进程并触发凋亡而对多种癌细胞具有细胞毒性。选择溶解在适于静脉内施用的媒介物中的化合物21a用于动物模型中的抗肿瘤研究。我们证明了在不引起小鼠体重减轻的剂量下，化合物21a可以显着抑制裸鼠中人肺癌H460和结直肠癌HCT-116细胞的肿瘤异种移植物的生长。我们目前的结果证实了这些缀合物的抗肿瘤活性。