A New Eudesmane Sesquiterpenoid Glycoside from Lactuca Sativa L var. Anagustata

摘要

Chemical reinvestigation of the methanolic extract of whole plant of Lactuca sativa L var. anagustata has now led to the isolation of one new eudesmane sesquiterpenoid glycoside which was elucidated by means of spectroscopic methods, including 2D-NMR experiments (~1H-~1H COSY, HMQC, HMBC, and NOESY) as 1β-O-β-D-glucopyranosyl-15-O-(p-methoxyphenylacetyl)-5α, 6βH-eudesma-3, 11(13)-dien-12, 6α-olide.