PT - JOURNAL ARTICLE AU - TERUO KURIHARA AU - RIE SATOH AU - TAKASHI MIYAGAWA AU - HIDETSUGU WAKABAYASHI AU - NOBORU MOTOHASHI AU - HIROSHI SAKAGAMI TI - Relationship between Electronic Structure and Cytotoxic Activity of Azulenequinones and Trihaloacetylazulenes DP - 2007 Sep 01 TA - In Vivo PG - 715--720 VI - 21 IP - 5 4099 - http://iv.iiarjournals.org/content/21/5/715.short 4100 - http://iv.iiarjournals.org/content/21/5/715.full SO - In Vivo2007 Sep 01; 21 AB - The relationship between the structure and cytotoxic activity of azulenequinones and trihaloacetylazulenes was investigated based on theoretical calculations. Four different dipole moments (μG, μESP-G, μW and μESP-W) and heats of formation (ΔHf) of the azulenequinones [1-27] and trihaloacetylazulenes [28a,b-40a,b] were separately calculated in gas phase and aqueous solution using the conductor-like screening model/parametric method 3 (COSMO/PM3) method. The cytotoxic activity of azulenequinones was well correlated to ΔΔHf, HOMO energy and μESP-w. The cytotoxic activity of trihaloacetylazulenes was correlated to ΔΔHf, LUMO energy and μESP-W. QSAR may be applicable to predict the cytotoxicity of azulenequinones and trihaloacetylazulenes. Copyright © 2007 International Institute of Anticancer Research (Dr. John G. Delinassios), All rights reserved