目的:获得高活性且具有抗多药耐药活性的抗肿瘤新化合物。方法:5-甲氧基吲哚与氯代物或酰氯反应得到一位氮取代的5-甲氧基吲哚。将其与草酰氯反应,再以4β-氨基-4’-去甲表鬼臼毒素为原料,经缩合反应得到目标化合物。体外活性采用Hela细胞筛选模型进行评价。结果:通过草酰桥成功将吲哚和去甲表鬼臼毒素拼接,并对吲哚一位进行改造,合成了8个新化合物。结论:合成的8个化合物中部分具有良好的抗肿瘤活性,其中化合物7a、7b的活性优于阳性对照依托伯苷。
Objective: To obtain compounds with superior antitumor bioactivity and overcoming multidrug resistance. Methods: The 5- methoxyindole was reacted with alkyl chlorides or acyl chlorides to get N-substituted 5-methoxy-indoles. N-substituted 5-methoxyindol-3-ylglyoxyl chlorides were prepared by the reaction of various N-substituted 5-methoxyindoles with oxalyl chloride. Subsequently, it was coupled with 4-amino-4' -demethylepipodophyllotoxin in the presence of triethylamine to generate the products. HeLa cell line was used to assess the cytotoxicity of these compounds in vitro. Results: Through the oxalyl bridge indoles and success split joint podophyllotoxin, and 8 novel podophyllotoxin derivatives were synthesized. Conclusion:Part of the eight compounds which are sythesised show favourable antitumor activities, and some compounds (7a, 7b) show comparable antitumor activities to that of etoposide.