JOURNAL 2158
Records of Natural Products
										VOLUME & ISSUE
										
Year: 2022 Issue: 4 July-August
								Year: 2022 Issue: 4 July-August
										PAGES
										
p.346 - 352
								p.346 - 352
										STATISTICS
										
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GRAPHICAL ABSTRACT
								    
										                    ABSTRACT
Phytochemical study of Adinandra hainanensis stems led to the isolation of a new triterpene lupan-3β,20-dihydroxy-28-carbaldehyde (1) and eleven known compounds 2-12. The stems of A. hainanensis was rich in lupane-type triterpenes, especially betulinic acid (9) was abundant (around 0.45% w/w). The isolated triterpenes, including new compound 1 showed strong α-glucosidase inhibitory activity with IC50 values ranging of 2.27 ± 0.05 μg/mL to 12.25 ± 0.36 μg/mL. In the cytotoxic evaluation, betulinic acid, the major component, showed good cytotoxic activity against all tested cancer cell lines while new compound 1 was weakly active.
KEYWORDS- Adinandra hainanensis
 - lupane triterpene
 - betulinic acid
 - α-glucosidase
 - cytotoxicity