New lignan butenolides from Bupleurum salicifolium.
1993
Estevez Reyes R. | Estevez Braun A. | Gonzalez A.G.
Three new lignans were obtained from the roots of Bupleurum salicifolium (Umbelliferae). Two proved to be butenolides, methylchasnarolide [1] and chasnarolide [3], and the other, a gamma-butyrolactone, was benchequiol [6]. Their structures were determined by spectral and chemical means.
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