CONVENIENT SYNTHESIS OF NIESHOUTIN (CYCLOOBLZQUETIN), A FUROCOUMARIN ISOLATED FROM THE HEARTWOOD OF Ptaeroxylon obliquum

RS Mali, AR Manekar, SG Tilve

文献索引：Mali, R. S.; Manekar, Anita R.; Tilve, S. G. Organic Preparations and Procedures International, 1992 , vol. 24, # 1 p. 52 - 54

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被引用次数: 3

摘要

Several angular dihydrofurocoumarins have been isolated'from the heartwood of Ptaeroxylon obliquum (sneezewood) and most contain substituents in the dihydrofuran moiety. Moreover, a few including nieshoutin (cycloobliquetin, 4) contain three methyl groups in the dihydrofuran portion. 2 The assigned structure3 4 has been confirmed by synthesis. All the methods reported" for the synthesis of 4 make use of naturally occurring ...