Cytotoxicities and Topoisomerase I Inhibitory Activities of 2-[2-(2-Alkynylphenyl)ethynyl]benzonitriles, 1-Aryldec-3-ene-1,5-diynes, and Related Bis(enediynyl)arene Compounds
作者:Chi-Fong Lin、Wen-Der Lu、Pei-Chen Hsieh、Yao-Haur Kuo、Huey-Fen Chiu、Chyi-Jia Wang、Ming-Jung Wu
DOI:10.1002/1522-2675(200208)85:8<2564::aid-hlca2564>3.0.co;2-0
日期:2002.8
The activities of a series of acyclic enediynes, 2-(6-substituted hex-3-ene-1,5-diynyl)benzonitriles (1-5) and their derivatives 7-23 were evaluated against several solid tumor cell lines and topoisomerase I. Compounds 1-5 show selective cytotoxicity with Hepa cells, and 2-[6-phenylhex-3-ene-1,5-diynyl]benzonitrile (5) reveals the most-potent activity. Analogues 8-10 and 13-22 also have the same effect with DLD cells; 1-[(Z)-dec-3-ene-1,5-diynyl]-4-nitrobenzene 21 shows the highest activity among them. Moreover, 1-[(Z)-dec-3-ene-1,5-diynyl]2-(trifluoromethyl)benzene (20) exhibits the strongest inhibitory activity with the Hela cell line. Derivatives 9, 10, 18, and 23 display inhibitory activities with topoisomerase I at 87 mum. The cell-cycle analysis of compound 5, which induces a significant blockage in S phase, indicates that these novel enediynes probably undergo other biological pathways leading to the cytotoxicity, except the inhibitory activity toward topoisomerase I.