Seven new pentacyclic triterpenoids including six ursane-type, marinoids A-F (1-6), and one oleanane-type, marinoid G (7), along with five known analogues (8-12), were separated from the roots of Morinda officinalis var. officinalis. Their structures were assigned by spectroscopic means especially analysis of 2D NMR data, with the absolute configurations of 1 and 2 being determined via comparison of their experimental ECD spectra with the computed ones. Selective compounds displayed cytotoxic activity against two human osteosarcoma cell lines and also antibacterial effects against one Gram positive and one Gram negative strains.
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| http://dx.doi.org/10.1016/j.fitote.2018.12.011 | DOI Listing |
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