Goniothalamus plant extract 3 9 deoxygoniopypyrone 2 Cytotoxicity 2 Goniothalamus lanceolatus 2 Goniothalamus lanceolatus extract 2 bark 2 goniothalamin 2 human 2 proton nuclear magnetic resonance 2 pyrone derivative 2 unclassified drug 2 5 acetylgoniothalamin 1 5 hydroxy 6 styryltetrahydropyrane 2 one 1 5 hydroxygoniothalamin 1 8 epi 9 deoxygoniopypyrone 1 9-deoxygoniopypyrone 1 Acute toxicity 1 Annonaceae 1 Antioxidant activity 1 Antioxidants 1 Antiplasmodial 1 Aporphines 1 Article 1 Benzamides 1 Cinnamates 1 Conference Paper 1 Goniomicins A-D 1 Goniothalamus tapisoides 1 HT29 Cells 1