Unusual Naphthoquinone Derivatives from the Twigs of Avicennia marina
Journal of Natural Products2007Vol. 70(6), pp. 923–927
Citations Over TimeTop 15% of 2007 papers
Li Han, Xueshi Huang, Hans‐Martin Dahse, Ute Moellmann, Hongzheng Fu, Susanne Grabley, Isabel Sattler, Wenhan Lin
Abstract
In a continuing search for novel bioactive compounds from marine mangrove plants, seven new naphthoquinone derivatives were isolated from Avicennia marina, namely, avicennone A (1), avicennone B (2), avicennone C (3), avicennone D (4), avicenone E (5), avicennone F (6), and avicennone G (7), along with the known compounds avicequinone A (8), stenocarpoquinone B (9), avicequinone C (10), avicenol A (11), and avicenol C (12). The chemical structures of 1-7 were elucidated by spectroscopic methods. Compounds 8-10, and a mixture of 4 and 5, which all contain a 4,9-dione group, showed strong antiproliferative and moderate cytotoxic activities, as well as antibacterial effects.
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