Two new polyhydroxylated pentacyclic triterpenes with cytotoxic activities from Manilkara pellegriniana (Sapotaceae)

Sapotaceae, Terpene, Ursolic acid, Stereochemistry, Chemistry, Two-dimensional nuclear magnetic resonance spectroscopy, Ethyl acetate, Bark (sound), Traditional medicine, Botany, Biology, Organic chemistry, Chromatography