Journal
JOURNAL OF NATURAL PRODUCTS
Volume 80, Issue 5, Pages 1255-1263Publisher
AMER CHEMICAL SOC
DOI: 10.1021/acs.jnatprod.6b00805
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Funding
- Serbian Ministry of Education and Science [172053, 173048]
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Seven derivatives of pentacyclic triterpene acids (1-7) were isolated from the bark of Alnus viridis ssp. viridis using a combination of column chromatography and semipreparative HPLC. Compounds 1-3, 6, and 7 were determined to be new after spectroscopic data interpretation and were assigned as 27-hydroxyalphitolic acid derivatives (1-3), a 27-hydroxybetulinic acid derivative (6), and a 3-epi-maslinic acid derivative (7), respectively. Pentacyclic triterpenoids with a C-27 hydroxymethyl group have been found in species of the genus Alnus for the first time. These compounds were subjected to cytotoxicity testing against a number of canter cell lines. Also, selected pentacyclic triterpenoids were selected as potential inhibitors of topoisomerases I and Ha for an in silico investigation.
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