PMID: Fitoterapia. 2021 Oct ;154:105017. Epub 2021 Aug 18. PMID: 34418492 Abstract Title: Five terpenoids from the gum resin of Boswellia carterii and their cytotoxicity. Abstract: One undescribed tetracyclic triterpene (boswellicarin A), four undescribed pentacyclic triterpenes (boswellicarterins A-C) and one undescribed prenylaromadendrane-type diterpene (boscarterin A) were isolated from the gum resin of Boswellia carterii Birdw. (Burseraceae). Their structures were elucidated from NMR and HRESIMS spectroscopic data and ECD spectra. Boswellicarterins A-C and boscarterin A displayed weak and selective cytotoxicity against three human cancer cells (HepG2, A549 and MCF-7) by MTT assay.
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