作者:Kana Watanabe、Yusuke Iwata、Satoshi Adachi、Tomoyuki Nishikawa、Yuko Yoshida、Shunsuke Kameda、Mitsuaki Ide、Yoko Saikawa、Masaya Nakata
DOI:10.1021/jo100913s
日期:2010.8.20
The lactonamycin model aglycon 4 was synthesized from the trihalogenated benzene derivative 10. Ethynyltetraol 6 was prepared from 10 via carbon elongations, oxidative demethylation, a cycloaddition reaction with the diene derived from homophthalic anhydride, and dihydroxylation. Final E- and F-ring constructions from 6 were realized via a palladium-catalyzed cyclization-methoxycarbonylation, a stereoselective methanol addition, and lactonization, leading to the production of 4.