- Homoisoflavonoids and Related Compounds. V. A Novel Dibenzoxocin Derivative from Caesalpinia sappan L.
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A novel dibenzoxocin derivative, 7,8-dihydro-10-methoxy-3,7,11-trihydroxy-6H-dibenzoxocin-7-methanol was isolated from Sappan Lignum, the dried heartwood of Caesalpinia sappan L.The chemical structure was established on the basis of the spectrometric data and the chemical interrelation with protosappanin B (7,8-dihydro-3,7,10,11-tetrahydroxy-6H-dibenzoxocin-7-methanol).Keywords - Caesalpinia sappan; Sappan Lignum; Leguminosae; heartwood; dibenzoxocin derivative; 10-O-methylprotosappanin B; (1)H-(1)H difference NOE spectrum
- Namikoshi, Michio,Nakata, Hiroyuki,Saitoh, Tamotsu
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p. 3615 - 3619
(2007/10/02)
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