Cheng Z, Fan W, Hu J, Yang D. Two new sesquiterpene glycosides from
Dendrobium findleyanum.
Nat Prod Res 2024:1-9. [PMID:
38329059 DOI:
10.1080/14786419.2024.2313191]
[Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/10/2023] [Accepted: 01/29/2024] [Indexed: 02/09/2024]
Abstract
One new ylangene-type sesquiterpene glycoside, findlayanoside C (1), and one new picrotoxane-type sesquiterpene glycoside, findlayanoside D (3), together with five known sesquiterpene glycosides, dendrofindlayanoside C (2), dendronobiloside B (4), dendronobiloside A (5), dendroside F (6) and dendromoniliside D (7), have been isolated from the stems of Dendrobium findleyanum. The structures of compounds 1 and 3 were elucidated by means of extensive spectroscopic analyses, and their absolute configuration were confirmed by electronic circular dichroism (ECD) calculations. Cytotoxic activity assays against SMMC-7721, A-549 and MCF-7 human cancer cell lines revealed IC50 values of 10.12, 12.32 and 14.13 μM for compound 1, and of 9.25, 13.16 and 16.26 μM for compound 2. This study enriches the anti-tumour sesquiterpenoids composition of D. findleyanum.
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