Substituted Dineolignans from Magnolia garrettii

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• 作者：Wolfgang Schuehly ; Wolfgang Voith ; Herwig Teppner ; Olaf Kunert
• 刊名：Journal of Natural Products
• 出版年：2010
• 出版时间：August 27, 2010
• 年：2010
• 卷：73
• 期：8
• 页码：1381-1384
• 全文大小：112K
• 年卷期：v.73,no.8(August 27, 2010)
• ISSN：1520-6025

文摘

In the course of a study on lignan profiles of tropical and subtropical members of the Magnoliaceae, Magnolia garrettii, an evergreen tree known from northern Thailand, Vietnam, and southern Yunnan (China), was investigated. The work resulted in the isolation of two dimeric lignans from the dichloromethane extract of the leaves of M. garrettii, garrettilignan A (1) and garrettilignan B (2), each substituted with two additional p-allylphenolic moieties. Garrettilignans A (1) and B (2) represent new skeletal types within the neolignan class. Additionally, four known neolignans, magnolol, honokiol, 4′-methylhonokiol, and obovatol, were identified.