Tuliposides from Tulipa sylvestris and T. turkestanica

Add time:09/29/2019    Source:infona.pl

The investigation of leaves stems and flowers of Tulipa turkestanica afforded, in addition to 6-tuliposide A, 1-tuliposide A, tuliposide D and the lactonized aglycones tulipalin A and (-)-tulipalin B, two new tuliposides. The structure of the new tuliposides were determined by spectral methods to be 1- (4-hydroxy-2-methylenebutanoate)-6- ((S)-3,4-dihydroxy-2-methylenebutanoate)-β-d-glucopyranose (tuliposide F) and 6- ((S)-3,4-dihydroxy-2-methylenebutanoate)-d-glucopyranose (6-tuliposide B), the latter being a new acyl derivative of the known 1-tuliposide B. The investigation of Tulipasylvestris gave 6-tuliposide A and B, tuliposide D and tulipalin A and B. The possible biosynthesis of the isolated compounds is briefly discussed.

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