Journal
MOLECULES
Volume 23, Issue 9, Pages -Publisher
MDPI
DOI: 10.3390/molecules23092297
Keywords
Neonauclea reticulate; iridoid; neonanin; Hep3B
Funding
- Chinese Medicine Research Center, China Medical University from The Featured Areas Research Center Program
- Ministry of Education (MOE) in Taiwan [CMRC-CHM-4]
- Taiwan Ministry of Health and Welfare Clinical Trial Center [MOHW107-TDU-B-212-123004]
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Three new iridoids, namely neonanin A (1), neonanin B (2) and neoretinin A (3), as well as twelve known compounds, 6-hydroxy-7-methyl-1-oxo-4-carbomethoxyoctahydrocyclopenta[c] pyran (4), 4-epi-alyxialactone (5), loganetin (6), loganin (7), phenylcoumaran-alpha'-aldehyde (8), cleomiscosin A (9), ficusal (10), balanophonin (11), vanillic acid (12), p-coumaric acid (13), cis, trans-abscisic acid (14), and trans, trans-abscisic acid (15) were isolated from the stems of Neonauclea reticulata (Havil.) Merr. These new structures were determined by the detailed analysis of spectroscopic data and comparison with the data of known analogues. Compounds 1-13 were evaluated using an in-vitro MTT cytotoxic assay for hepatocellular carcinoma (HCC) cells, and the preliminary results showed that ficusal (10), balanophonin (11), and p-coumaric acid (13) exhibited moderate cytotoxic activity, with EC50 values of 85.36 +/- 4.36, 92.63 +/- 1.41, and 29.18 +/- 3.48 mu g/mL against Hep3B cells, respectively.
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