YAKUGAKU ZASSHI
Online ISSN : 1347-5231
Print ISSN : 0031-6903
ISSN-L : 0031-6903
オオバアワダンのアルカロイド研究
楊 蔵雄盧 盛徳王 三吉王 俊文林 正浩陳 益昇
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1971 年 91 巻 7 号 p. 782-786

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From the fresh leaves of Formosan Melicope confusa (MERR). LIU, skimmianine (II), kokusaginine (IV), and a new furoquinoline-type alkaloid, confusameline, were isolated. The new alkaloid, confusameline, occurs as light brownish needles, mp 239-240°, and its methylation with diazomethane gives evolitrine (XIV). By the comparison of signal positions of methoxyl groups in the nuclear magnetic resonance (NMR) spectrum of the O-ethyl compound (XV), obtained by ethylation with diazoethane, and the NMR spectra of several known furoquinoline-type alkaloids which have already been reported (Table I), the structure of confusameline was proposed as formula XIII.

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