✦ LIBER ✦
Total assignment of 1H and 13C spectra of the chlorinated triterpenoid (methyl 2α,3β,24-tri-O-acetylolean-12α- chloro-28,13β-olide) by NMR spectroscopy
✍ Scribed by F. J. Q. Monte; J. P. Kintzinger; R. Braz-Filho
- Publisher
- John Wiley and Sons
- Year
- 1998
- Tongue
- English
- Weight
- 185 KB
- Volume
- 36
- Category
- Article
- ISSN
- 0749-1581
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✦ Synopsis
The current substantial interest concerning the structure elucidation of new active natural products led to the complete 1H and 13C chemical shift assignment of a triterpenoid derivative, methyl 2a,3b,24-tri-Oacetylolean-12a-chloro-28,13b-olide, obtained after acetylation and methylation of a mixture isolated from Mentha villosa. The 2D shift-correlated NMR techniques HMBC, HMQC, COSY and NOESY were used.
1998 John