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Complete 1H and 13C data assignments of two new guaianolides isolated from Ainsliaea fragrans

✍ Scribed by Xingshang Li; Jiangyun Liu; Jinna Cai; Peilie Cai

Publisher
John Wiley and Sons
Year
2008
Tongue
English
Weight
101 KB
Volume
46
Category
Article
ISSN
0749-1581

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✦ Synopsis

Abstract

Two new guaianolides, 8α‐hydroxy‐11α,13‐dihydroglucozaluzanin C and 11α,13‐dihydroglucozaluzanin C, were isolated from Ainsliaea fragrans, along with two known guaianolides, 8α‐hydroxy‐11α,13‐dihydrozaluzanin C and glucozaluzanin C. The structures of the new compounds were unambiguously established by HR‐ESI‐MS, one‐dimensional (1D) (DEPT), two‐dimensional (2D) (^1^H^1^H COSY, HSQC, HMBC, ROESY) NMR experiments and by comparison with structurally related compounds. The known compounds were identified by comparison of spectral data with published references. Some NMR data of the known compounds were reported for the first time. Copyright © 2008 John Wiley & Sons, Ltd.

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