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Molecules 2014, 19(2), 2629-2636; doi:10.3390/molecules19022629

Three New Tetranorditerpenes from Aerial Parts of Acerola Cherry (Malpighia emarginata)

1 State Key Laboratory of Phytochemistry and Plant Resources in West China, Kunming Institute of Botany, Chinese Academy of Science, Kunming 650201, China 2 University of Chinese Academy of Science, Beijing 100049, China 3 Amway (China) Botanical Research Center, Wuxi 214115, China These authors contributed equally to this work.
* Author to whom correspondence should be addressed.
Received: 15 January 2014 / Revised: 19 February 2014 / Accepted: 20 February 2014 / Published: 24 February 2014
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Acerola cherry is a world famous fruit which contains abundant antioxidants such as vitamin C, anthocyanins, flavonoids, and phenolics. However, studies concerning bioactivity components from aerial parts of acerola (Malpighia emarginata) are scarce. In view of this, we have examined the constituents of aerial parts of acerola, and three new tetranorditerpenes acerolanins A–C (13) with a rare 2H-benz[e]inden-2-one substructure were isolated. Their structures were determined on the basis of spectral studies and acerolanin C was confirmed by X-ray crystallographic analysis. Furthermore, three new compounds have been studied for their cytotoxic activity.
Keywords: acerola; Malpighia emarginata; Malpighiaceae; tetranorditerpenes; cytotoxicity acerola; Malpighia emarginata; Malpighiaceae; tetranorditerpenes; cytotoxicity
This is an open access article distributed under the Creative Commons Attribution License (CC BY 3.0).

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Liu, J.-Q.; Deng, Y.-Y.; Li, T.-Z.; Han, Q.; Li, Y.; Qiu, M.-H. Three New Tetranorditerpenes from Aerial Parts of Acerola Cherry (Malpighia emarginata). Molecules 2014, 19, 2629-2636.

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