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Antifungal of modified neolignans from Mitrephora wangii Hu
Saksri Sanyacharernku,Sirinapa Nantapap,Kallaya Sangrueng,Narong Nuntasaen,Wilart Pompimon,Puttinan Meepowpan 한국응용생명화학회 2016 Applied Biological Chemistry (Appl Biol Chem) Vol.59 No.3
Chromatographic separation of leaves and twigs from M. wangii had led to the isolation of conocarpan (1) and 3′-methoxyconocarpan (2). These structures were assigned on the basis of spectroscopic methods. Compound 1 was modified by organic reactions and the modified compound 5 exhibited potent antifungal, Pyricularia oryzae. The method used poisoned food technique with mycelial growth inhibition for 14 days, 57 % (100 ppm). Compound 5 was stronger than mancozeb which the fungi toxicity drug used as a positive control.