First Example of 11,12-Epoxytaxane-Glucoside From the Needles of Taxus Cuspidata

A Novel Taxane 13-Glucoside and Other Taxanes from the Leaves ofTaxus cuspidata

“…T. cuspidata is one of the most extensively investigated yews, and more than 120 taxanes have been isolated from it [1][2][3][4][5][6]. As a continuation of our research on plants from the Taxus genus, we reinvestigated the leaves of T. cuspidata collected at Sendai, Japan [7][8][9][10][11][12][13][14][15], and isolated three new taxanes (l " Fig. 1 [10,11,16]).…”

“…As a continuation of our research on plants from the Taxus genus, we reinvestigated the leaves of T. cuspidata collected at Sendai, Japan [7][8][9][10][11][12][13][14][15], and isolated three new taxanes (l " Fig. 1 [10,11,16]). The spectral data due to the taxane moiety resembled those of the known taxane 2α,9α,10βtriacetoxytaxa-4(20),11-diene-5α,13α-diol, which was isolated from T. chinensis var.…”