Journal of Medicinal Materials, 2024, Vol. 29, No. 5 (pp. 259 - 264)

TRITERPENOIDS AND BENZOIC ACID DERIVATIVES

FROM THE FLOWER OF SYZYGIUM CUMINI

            Nguyen Thi Hue¹, Vu Van Nam¹, Nguyen Thuy Linh¹, Pham Van Cuong^{1,2 ,}*,

Doan Thi Mai Huong^{1,2 ,}*

¹Institute of Marine Biochemistry, Vietnam Academy of Science and Technology (VAST),

Hanoi, Vietnam

²Graduate University of Science and Technology, Vietnam Academy of Science and Technology,

Hanoi, Vietnam

*Corresponding author: phamvc@imbc.vast.vn; huongdm@imbc.vast.vn

(Received August 15^th, 2024)

Summary

Triterpenoids and Benzoic Acid Derivatives from the Flowers of Syzygium cumini

From the flowers of Syzygium cumini (L.) Skeels, twelve known compounds (seven triterpenoids and five benzoic acid derivatives) were isolated, including friedelin (1), epifriedelanol (2), ursolic acid (3), corosolic acid (4), arjunolic acid (5), lupeol (6), betulinic acid (7), gallic acid (8), 3,5-dihydroxy-4-methoxybenzoic acid (9), syringic acid (10), protocatechuic acid (11), and isovanillic acid (12). The structures of the isolates were determined by spectroscopic analyses including MS and NMR data. Among them, compounds 4-6, 9, and 11 were first isolated from the flowers of S. cumini. Also, this is the first report of the chemical constituents from S. cumini in Vietnam.

Keywords: Syzygium cumini, Myrtaceae, Triterpenoid, Phenolic.

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