Chemical constituents from roots of Ixeris chinensis

Sesquiterpene lactone
DOI: 10.4268/cjcmm20141617 Publication Date: 2014-12-02T05:50:48Z
ABSTRACT
Silica gel column chromatography and preparative HPLC were applied to isolate the chemical constituents from roots of Ixeris chinensis. Fifteen compounds isolated their structures elucidated by physicochemical properties spectral analysis as chinensioide G(1), B(2), 10α-hydroxy-guaia-12,6-lactone-3-keton(3), C(4), 10α-hydroxy-11βH-guaia-4(5) -ene-12,6-lactone (5), 3β, 10α-dihydroxy-11βH-guaia-11 (13)-ene-12,6-lactone (6), 10α-dihydroxy-4βH, 11βH-guaia-12,6-lactone(7), 10α-dihydroxy-guaia-4 (15), 11 (13) -diene-12, 6-lactone (8), caffeic acid (9), p-hydorxyphenylacetic acid(10), methyl p-hydroxyphenylacetate (11), ethyl (12), sitosterol (13), daucosterol (14), ixerin D(15). Compound 1 was new, 6 7 I. chinensis for first time.
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