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Abstract
Abstract
A new cassane diterpenoid, caesappine A (1), and a new natural cassane diterpenoid, caesappine B (2) were isolated from the seeds of Caesalpinia sappan. The new structures of compounds 1 and 2 were elucidated by analysing their 1D NMR, 2D NMR and HR-ESI-MS spectra. Compounds 1 and 2 were evaluated for the cytotoxic activities on Hela and HepG-2 human cancer cell lines.
Graphical Abstract
![Graphical abstract]({"type":"image","src":"/na101/home/literatum/publisher/tandf/journals/content/gnpl20/0/gnpl20.ahead-of-print/14786419.2020.1849196/20210501/images/medium/gnpl_a_1849196_uf0001_b.jpg"})
Disclosure statement
No potential conflict of interest was reported by the authors.