Radical Scavenging Constituents from Leaf of Humulus scandens

摘要

Four compounds were obtained from the methanol extract leaves of Humulus scandens and identified as N-trans-p-coumaroyl octopamine (1), dehydrodiconiferyl alcohol (2), tribulusamide A (3), simiarenol (4), all of which were isolated from this plant for the first time. Among them, compounds 1,2 and 3 exhibited significant radical scavenging activity against 1,1-diphenyl-2-picrylhydrazyl (DPPH) with IC_(50) values of 16.2, 12.5 and 10.8 μM, respectively.