Abstract
Solvent partition and chromatographic fractionation of the wood of Pinus taeda afforded a mixture of aliphatic ketones and esters, sitosterol, stilbene and five diterpenes namely, pimaric acid, isopimaric acid, dehydroabietic acid, 12 α,13 β-dihydroxyabiet-8(14)-en-18-oic acid and 7 α,9 α,11 α-trihydroxyabiet-8(14)-en-18-oic acid. The structures of these compounds were elucidated by IR, 1D and 2D NMR techniques including NOE and also mass spectral data.
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