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Chemical and Pharmaceutical Bulletin
Vol. 34 (1986) No. 6 P 2506-2511



Six aromatic compounds 1-6 were isolated from Sappan Lignum, the dried heartwood of Caesalpinia sappan L., and were characterized as 3-benzylchroman derivatives by spectroscopic means. They seem to be closely related biosynthetically to brazilin; 2 and 3 may be precursors and 4-6 may be key intermediates in the biogenesis of brazilin.

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