Unusual stilbenoids and a stilbenolignan from seeds of Syagrus romanzoffiana

Sio Hong Lam, Shoei Sheng Lee

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12 Citations (Scopus)


Stilbenoids, syagrusins A-B (1-2), and a stilbenolignan, 5-hydroxyaiphanol (3), along with three known phenylpropanoids (4-6), were isolated from seeds of Syagrus romanzoffiana. Compounds 1 and 2 possess unusual 1,4,4a,9a-tetrahydrofluoren-9-one and bicyclo[3.3.0]octanedione skeletons, respectively, whereas compound 3 is a stilbenolignan belonging to a very rare structural class of plant secondary metabolites. Their structures were elucidated by spectroscopic analyses. Compounds 1-3 exhibited moderate inhibitory activity against α-glucosidase with IC50 values of 16.9 μM (1), 23.7 μM (2) and 12.8 μM (3), respectively.

Original languageEnglish
Pages (from-to)792-797
Number of pages6
Issue number7
Publication statusPublished - 2010 May

All Science Journal Classification (ASJC) codes

  • Biochemistry
  • Molecular Biology
  • Plant Science
  • Horticulture


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