新型双β-咔啉碱的设计、合成与抗肿瘤活性研究
首发时间:2012-12-07
摘要:目的:设计新型双β-咔啉碱并评价其抗肿瘤活性。方法:以L-色氨酸为原料,经Spictet-Spengler 缩合、酯化、氧化、烷基化等5步反应合成了6个新型双β-咔啉碱,采用MTT 法和6种人肿瘤细胞系对目标化合物进行了体外抗肿瘤活性评价。结果与结论:所有目标化合物的结构经EI-MS、1H NMR、13C NMR 进行了结构确认。体外抗肿瘤活性测试结果表明:桥链长度为6个亚甲基的双β-咔啉碱6c具有最好抗肿瘤活性,所有目标化合物对KB 细胞系具有选择的抗肿瘤活性。
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Design, synthesis and antitumor activities of novel bivalent β-carbolines
Abstract:A series of bivalent β-carbolines with a spacer of four to ten methylene units between the 3-carboxoylic group was synthesized from the starting material L-tryptophan by Spictet-Splengler condensation, esterification, dehydrogenation and alkylation. The chemical structures of all the newly synthesized compounds were characterized by EI-MS, 1H NMR and 13C NMR. The cytotoxic activities of all bivalent β-carbolines was evaluated in vitro against a panel of human tumor cell lines and compared with the reference drugs cisplatin. The results demonstrated that compounds 6c with a spacer of six methylene units exhibited more potent cytotoxic activities, and all bivalent β-carbolines were selectively active against KB cell lines.
Keywords: Organic chemistry synthesis bivalent β-carbolines antitumor
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