Gnetaceae Gnetum 2 Article 1 Gnetum cuspidatum 1 Gnetum microcarpum 1 Magnetic Resonance Spectroscopy 1 Malaysianol E 1 Plant Extracts 1 Stilbene 1 Stilbenes 1 chemical structure 1 chemistry 1 chemotaxonomy 1 epsilon viniferin 1 gnetol 1 gnetucleistol C 1 gnetucleistol D 1 isolation and purification 1 malaysianol E 1 mass spectrometry 1 nonhuman 1 nuclear magnetic resonance spectroscopy 1 oligostilbenoid 1 phytochemistry 1 plant extract 1 resveratrol 1 solvent extraction 1 stilbene derivative 1 unclassified drug 1