Complete  1 H and  13 C NMR assignments of sesquiterpene glucosides from  Ixeris sonchifolia | Zendy

Na ZeyEi | Zendy; Cho JeongYong | Zendy; Lee Hyoung Jae | Zendy; Chung Jin Ho | Zendy; Park Ki Deok | Zendy; Lee Young Ju | Zendy; Shin Soo Cheol | Zendy; Rim Yo Sup | Zendy; Park KeunHyung | Zendy; Moon JaeHak | Zendy

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Complete 1 H and 13 C NMR assignments of sesquiterpene glucosides from Ixeris sonchifolia

Author(s) -

Na ZeyEi,

Cho JeongYong,

Lee Hyoung Jae,

Chung Jin Ho,

Park Ki Deok,

Lee Young Ju,

Shin Soo Cheol,

Rim Yo Sup,

Park KeunHyung,

Moon JaeHak

Publication year - 2007

Publication title -

magnetic resonance in chemistry

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.483

H-Index - 72

eISSN - 1097-458X

pISSN - 0749-1581

DOI - 10.1002/mrc.1953

Subject(s) - chemistry , sesquiterpene , carbon 13 nmr , stereochemistry

Four sesquiterpene glucosides were isolated from Ixeris sonchifolia Hance. The structure of a new compound (1) was assigned as 9β‐monohydroxy‐2,12‐dioxo‐guaia‐3,11(13)‐dien‐1α,5α,6β,7α,9β,10αH‐12,6‐olide‐9‐ O ‐β‐ D ‐ glucopyranoside (ixerinoside). In addition, unambiguous and complete assignments of 1 H NMR chemical shifts for crepidiaside A (2), ixerin Z (3), and 11,13α‐dihydroixerin Z (4) are presented. The assignments were achieved by two‐dimensional NMR (gCOSY, gHSQC, gHMBC, NOESY) and one‐dimensional nuclear Overhauser effect (NOE) experiments. Copyright © 2007 John Wiley & Sons, Ltd.

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