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  • Title: New cassane-type diterpenoids from Caesalpinia bonduc.
    Author: Wu L, Wang X, Shan S, Luo J, Kong L.
    Journal: Chem Pharm Bull (Tokyo); 2014; 62(7):729-33. PubMed ID: 24990509.
    Abstract:
    Six new cassane diterpenoids, named caesalls H-M (1-6), were isolated from the seed kernels of Caesalpinia bonduc. Their structures were elucidated on the basis of spectroscopic analysis, mainly NMR and MS. The absolute configurations of compounds 1 and 3 were determined by a single-crystal X-ray study using a mirror CuKα radiation and circular dichroism (CD) spectra, respectively. None of the compounds were cytotoxic against HepG-2, MCF-7 and MG-63 cells.
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