Natural Furano Naphtoquinones from Lapachol: Hydroxyiso-β -Lapachone, Stenocarpoquinone-B and Avicequinone-C
作者:Carlos Magno R. Ribeiro、Pablo P. de Souza、L. D.M. Ferreira、Sharlene L. Pereira、Ingrid da S. Martins、Rosangela de A. Epifanio、Leticia V. Costa-Lotufo、Paula C. Jimenez、Claudia Pessoa、Manoel O. de Moraes
DOI:10.2174/157017811795685063
日期:2011.6.1
This work describes cheap and simple methods to obtain biological active furano naphthoquinones in good yields. Hydroxyiso-β-lapachone (3) was obtained in 61% yield from the reaction of lapachol (1) and MCPBA in dichloromethane using Na2HPO4 as the base. Reaction of 1 with MCPBA, followed by the addition of KOH/DMSO furnished both stenocarpoquinone-A (2) and avicequinone-C (5) in 20% yield. Using oxone/acetone and NaHCO3, stenocarpoquinone-B (4) was obtained in 50% yield. The biological assays using tumor cell lines showed that 1 is, in general, less toxic than its derivatives. Compounds 4 and 5, on the other hand, were strongly active against the four tested tumor cells.
本研究介绍了以廉价、简单的方法获得具有生物活性的呋喃萘醌的方法。以 Na2HPO4 为碱,在二氯甲烷中将拉帕醌(1)和 MCPBA 反应,得到羟基异-β-拉帕醌(3),收率为 61%。将 1 与 MCPBA 反应,然后加入 KOH/DMSO,可得到苯并卡泊醌-A(2)和阿维酮-C(5),收率为 20%。使用氧化酮/丙酮和 NaHCO3,可以得到苯并卡泊醌-B(4),收率为 50%。使用肿瘤细胞系进行的生物检测表明,1 的毒性总体上低于其衍生物。而化合物 4 和 5 则对四种测试的肿瘤细胞具有很强的活性。