Jacaranone and Related Compounds from the Fresh Fruits of Ternstroemia japonica and their Antioxidative Activity

  • Jo Youngmi (College of Pharmacy, Pusan National University) ;
  • Suh Jiyoung (College of Pharmacy, Pusan National University) ;
  • Shin Myoung Hee (College of Pharmacy, Pusan National University) ;
  • Jung Jee H. (College of Pharmacy, Pusan National University) ;
  • Im Kwang Sik (College of Pharmacy, Pusan National University)
  • Published : 2005.08.01

Abstract

Jacaranone and related compounds (1-3) were isolated, along with three triterpenes (4-6), from the fresh fruits of Ternstroemia japonica. The compounds were identified as jacaranone (1), 3-hydroxy-2,3-dihydrojacaranone (2), 3-methoxy-2,3-dihydrojacaranone (3), 3-O-acetyl­oleanolic acid (4), 3-O-acetylursolic acid (5), and ursolic acid (6). Jacaranone and its derivatives were isolated for the first time from Theaceae. Of the isolated compounds, compound 3 is a new compound. Jacaranone (1) exhibited weak antioxidative effect on 1, 1-diphenyl-2-picryl-hydrazyl (DPPH) radical.

Keywords

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