pentacyclic triterpene article 2 cytotoxicity 2 plant extract 2 plant root 2 unclassified drug 2 1 hydroxy 3 methoxy 2 (methoxymethyl) 9,10 anthraquinone 1 1,3 dihydroxy 2 methoxymethyl 9,10 anthraquinone 1 1,3 dimethoxy 2 methyl 9,10 anthraquione 1 12 (13)dehydro 3alpha acetoxyolean 28 oic acid 1 2 methyl 3 methoxy 9,10 anthraquinone 1 3alpha acetoxyl 25 hydroxyolean 12 en 28 oic acid 1 7 tetraene 24 nor friedelane 29 oic acid methyl ester 1 Acetylcholinesterase 1 Ajisamat 1 Anthraquinones 1 Asteraceae 1 Breast cancer 1 Celastraceae 1 Centella 1 Centella asiatica 1 Cholinesterase Inhibitors 1 Chromatography, High Pressure Liquid 1 Computer Simulation 1 Cytotoxic activity 1 Euphorbia 1 IC 50 1 IC50 1 In silico 1 In vitro 1