Flavonoids isolated from the flowers of Camellia chrysantha

Nguyen Thi Hong Van; Pham Cao Bach; Cam Thi Ich; Doan Lan Phuong; Le Tat Thanh; Tran Quoc Toan; Pham Quoc Long

doi:10.15625/2525-2518/57/3/13119

Author affiliations

Authors

Nguyen Thi Hong Van Institute of Natural Products Chemistry, Vietnam Academy of Science and Technology (VAST), 18 Hoang Quoc Viet street, Cau Giay, Ha Noi, Viet Nam
Pham Cao Bach Institute of Natural Products Chemistry, Vietnam Academy of Science and Technology (VAST), 18 Hoang Quoc Viet street, Cau Giay, Ha Noi, Viet Nam
Cam Thi Ich Institute of Natural Products Chemistry, Vietnam Academy of Science and Technology (VAST), 18 Hoang Quoc Viet street, Cau Giay, Ha Noi, Viet Nam
Doan Lan Phuong Institute of Natural Products Chemistry, Vietnam Academy of Science and Technology (VAST), 18 Hoang Quoc Viet street, Cau Giay, Ha Noi, Viet Nam
Le Tat Thanh Institute of Natural Products Chemistry, Vietnam Academy of Science and Technology (VAST), 18 Hoang Quoc Viet street, Cau Giay, Ha Noi, Viet Nam
Tran Quoc Toan Institute of Natural Products Chemistry, Vietnam Academy of Science and Technology (VAST), 18 Hoang Quoc Viet street, Cau Giay, Ha Noi, Viet Nam
Pham Quoc Long Institute of Natural Products Chemistry, Vietnam Academy of Science and Technology (VAST), 18 Hoang Quoc Viet street, Cau Giay, Ha Noi, Viet Nam

DOI:

https://doi.org/10.15625/2525-2518/57/3/13119

Keywords:

Camellia chrysantha, Theaceae, catechin, epicatechin, quercetin, quercetin-3-O-methyl ether, kaempferol.

Abstract

Camellia chrysantha (the golden camellia, golden tea) is a species of evergreen shrub or small tree belonging to the family Theaceae. The flowers and the leaves of this plant are used as tea and drank for its health benefits. The aim of this study was to investigate the chemical constituents of the flowers of Camellia chrysantha. Five flavonoids were isolated from the flowers of Camellia chrysantha (Theaceae), including (+)-catechin (1), (-)-epicatechin (2), quercetin (3), quercetin-3-O-methyl ether (4) and kaempferol (5). Their chemical structures were elucidated by spectroscopic data analysis and by comparison with those reported in the literature. Among five compounds, compounds 4 was isolated for the first time from this species.

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References

https://en.wikipedia.org/wiki/Camellia chrysantha

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