Do LTM, Huynh TTN, Tran QHN, Nguyen HTM, Nguyen TTA, Nguyen TTN, Nguyen PHH, Sichaem J. Placoisoflavones A and B, two new cytotoxic isoflavonoids from
Placolobium vietnamense N.D.Khôi & Yakovlev.
Nat Prod Res 2024;
38:112-118. [PMID:
35945810 DOI:
10.1080/14786419.2022.2110092]
[Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/04/2022] [Accepted: 07/28/2022] [Indexed: 10/15/2022]
Abstract
Two previously unreported isoflavonoids, placoisoflavones A and B (1 and 2), along with five known compounds, calopogonium isoflavone B (3), jamaicin (4), 6-methoxycalopogonium isoflavone A (5), vestitol (6), and caviunin (7) have been isolated from the stems of Placolobium vietnamense N.D.Khôi & Yakovlev. The structures of all isolated compounds were fully characterized using spectroscopic data and comparison with the previous literature. The cytotoxicity of all isolated compounds was evaluated against HepG2 cell line, and compound 1 showed the most potent cytotoxicity with an IC50 value of 8.0 μM.
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