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Antioxidant phenolic glycoside and flavonoids from Pieris japonica.
J Asian Nat Prod Res. 2013; 15(8):875-9.JA

Abstract

A new phenolic glycoside, benzyl 2-hydroxy-4-O-β-D-glucopyranosyl-benzoate (1), along with nine known flavonoids, epicatechin-(2 → O → 7,4 → 8)-ent-epicatechin (2), bis-8,8'-catechinylmethane (3), quercetin (4), quercetin-3-O-α-L-arabinfuranoside (5), quercetin-3-O-α-L-rhamnopyranoside (6), astilbin (7), engeletin (8), (2S,3R)-ent-catechin (9), and 2',4-dihydroxy-4'-methoxy-6'-O-β-D-glucopyranosyl dihydrochalcone (10), was isolated from the flowers of Pieris japonica. Their structures were elucidated on the basis of MS, 1D NMR, and 2D NMR techniques. This paper describes the isolation, structural elucidation as well as in vitro antioxidant activity of these compounds.

Authors+Show Affiliations

a Faculty of Life Science and Technology, Kunming University of Science and Technology , Kunming , 650500 , China.No affiliation info availableNo affiliation info availableNo affiliation info available

Pub Type(s)

Journal Article
Research Support, Non-U.S. Gov't

Language

eng

PubMed ID

23796053

Citation

Li, Yan-Ping, et al. "Antioxidant Phenolic Glycoside and Flavonoids From Pieris Japonica." Journal of Asian Natural Products Research, vol. 15, no. 8, 2013, pp. 875-9.
Li YP, Li YH, Zhong JD, et al. Antioxidant phenolic glycoside and flavonoids from Pieris japonica. J Asian Nat Prod Res. 2013;15(8):875-9.
Li, Y. P., Li, Y. H., Zhong, J. D., & Li, R. T. (2013). Antioxidant phenolic glycoside and flavonoids from Pieris japonica. Journal of Asian Natural Products Research, 15(8), 875-9. https://doi.org/10.1080/10286020.2013.803475
Li YP, et al. Antioxidant Phenolic Glycoside and Flavonoids From Pieris Japonica. J Asian Nat Prod Res. 2013;15(8):875-9. PubMed PMID: 23796053.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Antioxidant phenolic glycoside and flavonoids from Pieris japonica. AU - Li,Yan-Ping, AU - Li,Yan-Hong, AU - Zhong,Jin-Dong, AU - Li,Rong-Tao, Y1 - 2013/06/25/ PY - 2013/6/26/entrez PY - 2013/6/26/pubmed PY - 2013/11/15/medline SP - 875 EP - 9 JF - Journal of Asian natural products research JO - J Asian Nat Prod Res VL - 15 IS - 8 N2 - A new phenolic glycoside, benzyl 2-hydroxy-4-O-β-D-glucopyranosyl-benzoate (1), along with nine known flavonoids, epicatechin-(2 → O → 7,4 → 8)-ent-epicatechin (2), bis-8,8'-catechinylmethane (3), quercetin (4), quercetin-3-O-α-L-arabinfuranoside (5), quercetin-3-O-α-L-rhamnopyranoside (6), astilbin (7), engeletin (8), (2S,3R)-ent-catechin (9), and 2',4-dihydroxy-4'-methoxy-6'-O-β-D-glucopyranosyl dihydrochalcone (10), was isolated from the flowers of Pieris japonica. Their structures were elucidated on the basis of MS, 1D NMR, and 2D NMR techniques. This paper describes the isolation, structural elucidation as well as in vitro antioxidant activity of these compounds. SN - 1477-2213 UR - https://www.unboundmedicine.com/medline/citation/23796053/Antioxidant_phenolic_glycoside_and_flavonoids_from_Pieris_japonica_ DB - PRIME DP - Unbound Medicine ER -