A New Amide and Antioxidant Constituents of Piper taiwanense

作者：Chen, Jih Jung^*; Wang, Shih Wei; Chen, Chun Lin; Kuo, Yueh Hsiung; Cheng, Ming Jen^*; Chang, Tsung Hsien; Sung, Ping Jyun; Kuo, Wen Lung; Lim, Yun Ping

来源：Chemistry of Natural Compounds, 2017, 53(6): 1117-1121.

DOI：10.1007/s10600-017-2213-y

• Piper taiwanense
• Piperaceae
• aerial part
• amide
• antioxidant activity

A new amide, pipertaiwanamide (1), has been isolated from the aerial part of Piper taiwanense, together with four known compounds, taiwanamide A (2), taiwanamide B (3), 1-cinnamoylpyrrolidine (4), and N-cinnamoyltyramine (5). The structure of the new compound 1 was determined through spectroscopic and MS analyses. Pipertaiwanamide (1) and N-cinnamoyltyramine (5) exhibited free radical scavenging activity, with IC0.200 values of 12.6 /- 1.4 and 8.5 /- 0.8 oeecM, respectively, in the diphenylpicrylhydrazyl radical (DPPH) decoloration assay.

• 出版日期2017-11
• 单位中山大学; 中国医科大学