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Molecules 2010, 15(3), 1097-1102; doi:10.3390/molecules15031097

Flavonoids from the Stems of Croton caudatus Geisel. var. tomentosus Hook

Institute of Medicinal Plant Development, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100193, China
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Received: 2 December 2009 / Revised: 18 January 2010 / Accepted: 19 January 2010 / Published: 26 February 2010
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Abstract

A new flavone, named crotoncaudatin (1), was isolated from the stems of Croton caudatus Geisel. var. tomentosus Hook., together with nine known analogues: 3,5,6,7,8,3′,4′-heptamethoxyflavone (2), tangeretin (3), nobiletin (4), 5,6,7,4′-tetramethoxy-flavone (5), sinensetin (6), kaempferol (7), tiliroside (8), kaempferol-3-O-rutinoside (9) and rutin (10). The structures of the above compounds were established by a combination of spectroscopic methods, including HR-ESI-MS, 1H-NMR, 13C-NMR, HMQC and HMBC spectra. All compounds were isolated from and identified in this species for the first time and compounds 1-6 are new for the genus Croton.
Keywords: Croton caudatus Geisel.var. tomentosus Hook; Euphorbiaceae; flavonoids; crotoncaudatin Croton caudatus Geisel.var. tomentosus Hook; Euphorbiaceae; flavonoids; crotoncaudatin
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MDPI and ACS Style

Zou, G.-A.; Su, Z.-H.; Zhang, H.-W.; Wang, Y.; Yang, J.-S.; Zou, Z.-M. Flavonoids from the Stems of Croton caudatus Geisel. var. tomentosus Hook. Molecules 2010, 15, 1097-1102.

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