Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
5173200 | Phytochemistry | 2006 | 4 Pages |
Abstract
An ethanol extract of the trunkwood from Swartzia laevicarpa (Leguminosae) gave four (6aR,11aR)-8-hydroxy-3,9-dimethoxypterocarpans differentiated by additional 2-hydroxy, 2-hydroxy-10-methoxy, 4,10-dimethoxy and 2-hydroxy-4,10-dimethoxy substitution; besides two 8-hydroxy-6-methoxy-3-methylisocoumarins differentiated by 5-chloro and 7-chloro substitution; 5-hydroxy-7,8-dimethoxy-2-methylchromone and the known 8-hydroxy-5-methyl-3,4-dihydroxyisocoumarin.
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Authors
Raimundo Braz Filho, Miguel P.L. De Moraes, Otto R. Gottlieb,