Abstract
The investigation of the roots and the aerial parts of Taraxacum officinale afforded, in addition to known compounds, a new eudesmanolide, a tetrahydroridentin B, a eudesmanolide-β- d-glucopyranoside and two germacranolide acids, which are esterified with β- d-glucose. The latter two seem to represent a new type of sesquiterpene lactone. All three of the new glucose derivatives have a strong bitter taste. The structures were elucidated by intensive NMR studies and by some chemical transformations.
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