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Chemical and Pharmaceutical Bulletin
Vol. 35 (1987) No. 9 P 3568-3575

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http://doi.org/10.1248/cpb.35.3568


A new homoisoflavonoid, 3'-deoxy-4-O-methylsappanol (3, 7-dihydroxy-3- (4-hydroxybenzyl) 4-methoxychroman) was isolated from the wood of Caesalpinia japonica SIEB. et Zucc. (Leguminosae), together with the known compounds, sappanol, episappanol, 4-O-methylsappanol, 4-O-methylepisappanol, sappanones A and B, sappanchalcone, 3-deoxysappanchalcone, isoliquiritigenin, butein, brazilin and protosappanins A, B and C. None of these compounds has previously been isolated from this plant.

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