Isolation and characterization of alkaloids from Lindera Oxyphylla

The compounds (+)-O10-methylhernovine (1) (+)-norboldine (2) were obtained from phytochemical investigation of plant of Lindera Oxyphylla, a well medicinal plant. The structures of these compounds were established with the aid of spectroscopic methods, including analysis by 2D NMR spectroscopy. Determination of various antioxidant activities (2, 2-diphenyl-1-picrylhydrazyl radical scavenging (DPPH), ferric reducing power (FRAP), ferrous ion chelating (FIC) of leaves and bark of Lindera Oxyphylla. Compounds1-5 significantly showed DPPH scavenging activity with IC50 values of 161.93 ± 0.004, 41.32 ± 0.005 ( , respectively,and FRAP with IC50% values of 467 ±0.02 ,273.93±0.005 .