KAJIAN FITOKIMIA Hopea mengarawan DAN IMPLIKASINYA PADA KEMOTAKSONOMI HOPEA

Sahidin Sahidin (Jurusan Kimia, FMIPAUniversitas Haluoleo Kendari, Sulawesi Tenggara, Indonesia.)
EuisH Hakini (Kelompok Penelitian Kimia Organik Bahan Alam, Departemen Kimia, Institut Teknologi Bandung, Jalan Ganeca 10 Bandung 40132, Indonesia)
Yana M Syah (Kelompok Penelitian Kimia Organik Bahan Alam, Departemen Kimia, Institut Teknologi Bandung, Jalan Ganeca 10 Bandung 40132, Indonesia)
Lia D Juliawaty (Kelompok Penelitian Kimia Organik Bahan Alam, Departemen Kimia, Institut Teknologi Bandung, Jalan Ganeca 10 Bandung 40132, Indonesia)
Sjamsul A. Achmad (Kelompok Penelitian Kimia Organik Bahan Alam, Departemen Kimia, Institut Teknologi Bandung, Jalan Ganeca 10 Bandung 40132, Indonesia)
Laily Bin Din (School of Chemical Sciences & Food Technology, Faculty of Science and Technology, Universiti Kebangsaan Malaysia, 43600 UKM Bangi, Selangor D.E., Malaysia)
Jalifah Latip (School of Chemical Sciences & Food Technology, Faculty of Science and Technology, Universiti Kebangsaan Malaysia, 43600 UKM Bangi, Selangor D.E., Malaysia)

BERITA BIOLOGI
Vol 8, No 2 (2006)

Nine resveratrol oligomers have been isolated from the stem bark of Hopea mengarawan i.e. diptoindonesin D (1), balanocarpol (2), ampelopsin A (3), hopeaphuran (4), heimiol A (5), parviflorol (6), a-viniferin (7), isohopeaphenol (8), and vaticanol B (9).The structures of these compounds were determined based on spectroscopic evidence such as UV, IR, 1-D, 2-D NMR and comparison with the reported data. Those compounds implied that Hopea tends to produce resveratrol dimers. Moreover, in subgenus level, besides ampelopsin A (3) and isohopeaphenol (9), resveratrol oligomers in H. mengarawan the same as in H.dryobalanoides. It indicated that H. mengarawan and H. dryobalanoid.es came from the same subgenus.