RESVERATROL 10C-GLUKOPIRANOSIDA DAN HEIMIOLA, KARAKTER Hopea gregaria SECARAKEMOTAKSONOMI

Sahidin Sahidin (Kimia Organik Bahan Alam, Departemen Kimia, ITB)
EH Hakim (Kimia Organik Bahan Alam, Departemen Kimia, ITB)
YM Syah (Kimia Organik Bahan Alam, Departemen Kimia, ITB)
LD Juliawaty (Kimia Organik Bahan Alam, Departemen Kimia, ITB)
SA Achmad (Kimia Organik Bahan Alam, Departemen Kimia, ITB)
LB Din (Kimia Organik Bahan Alam, Departemen Kimia, ITB)
J Latip (Kimia Organik Bahan Alam, Departemen Kimia, ITB)

BERITA BIOLOGI
Vol 9, No 3 (2008)

Ten resveratrol oligomers have been isolated from the stem bark of H. gregaria i.e. resveratrol lOC-glucopyranoside (1), heimiol A (2), balanocarpol (3), ampelopsin A (4), hopeaphuran (5), E-viniferin (6), parviflorol (7), a-viniferin (8), hopeaphenol (9), and vaticanoi B (10). The structures of these compounds were determined base on spectroscopic methods including UV, IR, 1-D NMR, 2-D NMR and comparison with the reported data. Implication of the compounds invention is not only strengthen conclusion that Hopea tends to produce resveratrol dimmers but also showed that resveratrol lOC-glucopyranoside (1) and heimiol A (2) are phytochemical markers of. H. gregaria.