A new sesquiterpene lactone, 1β-hydroxy-4α-methoxy-5αH, 7αH, 6βH-eudesm-11(13)-en-6, 12-olide 1, and three known compounds, 4α-hydroxy-5αH, 7αH, 6βH-eudesm-11(13)-en-6, 12-olide 2, mokko lactone 3, β-sitosterol 4 were isolated from the roots of Vladimiria souliei. Their structures were elucidated by spectroscopic methods.
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