Triterpene hexahydroxydiphenoyl ester and phenol glucosides from the leaves of Castanopsis eyrie (Champ. ex Benth.) Hutch

Bing-Yuan Yang; Nao Pang; Rui-Jie He; Ya-Feng Wang; Yong-Lin Huang

doi:10.1080/14786419.2022.2135001

Triterpene hexahydroxydiphenoyl ester and phenol glucosides from the leaves of Castanopsis eyrie (Champ. ex Benth.) Hutch

Nat Prod Res. 2024 Apr;38(7):1177-1183. doi: 10.1080/14786419.2022.2135001. Epub 2022 Oct 22.

Authors

Bing-Yuan Yang¹, Nao Pang¹, Rui-Jie He¹, Ya-Feng Wang¹, Yong-Lin Huang¹

Affiliation

¹ Guangxi Key Laboratory of Plant Functional Phytochemicals and Sustainable Utilization, Guangxi Institute of Botany, Guangxi Zhuang Autonomous Region and Chinese Academy of Sciences, Guilin, China.

PMID: 36272171
DOI: 10.1080/14786419.2022.2135001

Abstract

As a part of our systematic study on Castanopsis genus (Fagaceae), one new triterpene hydrolysable tannin (1) and two new phenol glucosides (2 and 3) were isolated from the leaves of Castanopsis eyrei (Champ. ex Benth.) Hutch. Compound 1 was identified as a triterpene hexahydroxydiphenoyl (HHDP) ester. This type of compounds has only been isolated from Castanopsis genus. The structures of 1-3 were elucidated by the combination of spectroscopic analysis (MS, 1 D and 2 D NMR) and chemical evidence.

Keywords: Castanopsis eyrie; Fagaceae; phenol glucoside; triterpene HHDP esters.

MeSH terms

Esters / chemistry
Fagaceae* / chemistry
Glucosides / chemistry
Magnetic Resonance Spectroscopy
Phenol / analysis
Phenols / analysis
Plant Leaves / chemistry
Triterpenes* / chemistry

Substances

Glucosides
Phenol
Triterpenes
Esters
Phenols