A significant acetylcholinesterase inhibitory activity was observed for the ethyl acetate and methanol extracts from the leaves and the fruits of Myristica crassa. Three new dimeric acylphenols, giganteone C (5), maingayones B and C (6 and 7) were isolated together with the known malabaricones B and C (2 and 3) and giganteone A (4). Compounds 2 and 3 possess significant inhibitory activity on acetylcholinesterase. LC/MS study was particularly useful to discriminate structures of compounds 6 and 7.
Myristica crassa - Myristicaceae - Malabaricone - Acylphenol - Acetylcholinesterase - LC-MS