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Phenolic Glucosides from Dendrobium aurantiacum var. denneanum and Their Bioactivities
State Key Laboratory Breeding Base of Systematic Research, Development and Utilization of Chinese Medicine Resources, Sichuan Province and Ministry of Science and Technology, Chengdu 610075, Sichuan, China
Pharmacy College, Chengdu University of Traditional Chinese Medicine, Chengdu 610075, Sichuan, China
Sichuan Wan'an Dendrobe Industry Development Co., Ltd., Chengdu 610072, Sichuan, China
* Authors to whom correspondence should be addressed.
Received: 15 April 2013; in revised form: 16 May 2013 / Accepted: 20 May 2013 / Published: 23 May 2013
Abstract: A new 8,4¢-oxyneolignane glucoside 1 has been isolated from the stems of Dendrobium aurantiacum var. denneanum together with six known phenolic glucosides 2-7. The structure of the new compound, including its absolute configuration, was determined by spectroscopic and chemical methods as (–)-(7S,8R,7¢E)-4-hydroxy-3,3¢,5,5¢-tetramethoxy-8,4¢-oxyneolign-7¢-ene-7,9,9¢-triol 7,9¢-bis-O-β-D-glucopyranoside (1). In the in vitro assays, compound 1 and (-)-syringaresinol-4,4¢-bis-O-β-D-glucopyranoside (2) showed evident activity against glutamate-induced neurotoxicity in PC12 cells. Shashenoside I (4) showed a selective cytotoxic activity with the IC50 value of 4.17 μM against the acute myeloid leukemia cell line MV4-11, while it was inactive against 10 other human tumor cell lines.
Keywords: Dendrobium aurantiacum var. denneanum; lignan glucosides; phenylpropanoid glycosides; bioactivities
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Xiong, L.; Cao, Z.-X.; Peng, C.; Li, X.-H.; Xie, X.-F.; Zhang, T.-M.; Zhou, Q.-M.; Yang, L.; Guo, L. Phenolic Glucosides from Dendrobium aurantiacum var. denneanum and Their Bioactivities. Molecules 2013, 18, 6153-6160.
Xiong L, Cao Z-X, Peng C, Li X-H, Xie X-F, Zhang T-M, Zhou Q-M, Yang L, Guo L. Phenolic Glucosides from Dendrobium aurantiacum var. denneanum and Their Bioactivities. Molecules. 2013; 18(6):6153-6160.
Xiong, Liang; Cao, Zhi-Xing; Peng, Cheng; Li, Xiao-Hong; Xie, Xiao-Fang; Zhang, Ting-Mo; Zhou, Qin-Mei; Yang, Lian; Guo, Li. 2013. "Phenolic Glucosides from Dendrobium aurantiacum var. denneanum and Their Bioactivities." Molecules 18, no. 6: 6153-6160.