Abstract
Two dimers of stilbenoids, (-)-balanocarpol (4), and (-)-ampelopsin A (5), along with a tetramer (-)-hopeaphenol (6) were isolated from the stem bark of Shorea multiflora Burck (Dipterocarpaceae), locally known as Meranti. Their structures were determined by physical and UV, IR, 1H-NMR, and 13C-NMR spectroscopic data.
Keyword : (-)-ampelopsin A, (-)-balanocarpol, Dipterocarpaceae, (-)-hopeaphenol, Meranti, Shorea multiflora Burck.
Dua dimer stilbenoid, (-)-balanokarpol (4), dan (-)-ampelopsin A (5), telah diisolasi bersama-sama dengan satu tetramer (-)-hopeafenol (6) dari ekstrak aseton kulit kayu Shorea multiflora Burck (Dipterocarpaceae), yang dikenal dengan nama Meranti. Struktur molekul ketiga senyawa tersebut ditetapkan berdasarkan data fisika dan spektroskopi UV, IR, 1H-NMR, dan 13C-NMR.
Kata kunci : (-)-ampelopsin A, (-)-balanokarpol, Dipterocarpaceae, (-)-hopeafenol, Meranti, Shorea multiflora Burck.
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