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Molecules 2013, 18(3), 2840-2850; doi:10.3390/molecules18032840
Article

New Limonoids and a Dihydrobenzofuran Norlignan from the Roots of Toona sinensis

1, 1, 1,* , 2
 and 3
Received: 24 December 2012; in revised form: 28 January 2013 / Accepted: 30 January 2013 / Published: 1 March 2013
(This article belongs to the Section Metabolites)
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Abstract: Two new limonoids, toonins A (1) and B (2), and one new dihydrobenzofuran norlignan, toonin C (3), were isolated from the roots of Toona sinensis together with the ten known compounds 4-methoxy-6-(2′,4′-dihydroxy-6′-methylphenyl)-pyran-2-one (4), bourjotinolone A (5), proceranone (6), matairesinol (7), 4-hydroxy-3-methoxybenzene-ethanol (8), syringic acid (9), isoscopoletin (10), lyoniresinol (11), aloeemodin (12), and β-sitosterol (13). Their structures were elucidated on the basis of one- and two-dimensional spectroscopic analysis. Isolation of compounds 4, 613 from this plant is reported here for the first time.
Keywords: Meliaceae; Toona sinensis; limonoids; DPPH free radical scavenging Meliaceae; Toona sinensis; limonoids; DPPH free radical scavenging
This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

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MDPI and ACS Style

Dong, X.-J.; Zhu, Y.-F.; Bao, G.-H.; Hu, F.-L.; Qin, G.-W. New Limonoids and a Dihydrobenzofuran Norlignan from the Roots of Toona sinensis. Molecules 2013, 18, 2840-2850.

AMA Style

Dong X-J, Zhu Y-F, Bao G-H, Hu F-L, Qin G-W. New Limonoids and a Dihydrobenzofuran Norlignan from the Roots of Toona sinensis. Molecules. 2013; 18(3):2840-2850.

Chicago/Turabian Style

Dong, Xiao-Jie; Zhu, Yun-Fei; Bao, Guan-Hu; Hu, Feng-Lin; Qin, Guo-Wei. 2013. "New Limonoids and a Dihydrobenzofuran Norlignan from the Roots of Toona sinensis." Molecules 18, no. 3: 2840-2850.


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