The complete 1H and 13C assignment of two closely related isomeric triterpenoid derivatives (methyl 2a,3b-di-Oacetylolean-12-en-28-oate and methyl 2a,3a-di-O-acetylurs-12-en-28-oate) is described. In addition to 1D NMR methods, 2D shift-correlated NMR techniques (COSY, NOESY, HMBC and HMQC) were use
Total assignment of 1H and 13C NMR spectra of 13α- and 13β-estrone methyl ethers
✍ Scribed by P. Ciuffreda; P. Ferraboschi; E. Verza; A. Manzocchi
- Publisher
- John Wiley and Sons
- Year
- 2001
- Tongue
- English
- Weight
- 82 KB
- Volume
- 39
- Category
- Article
- ISSN
- 0749-1581
- DOI
- 10.1002/mrc.891
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✦ Synopsis
Abstract
The complete ^1^H and ^13^C chemical shift assignments of the 13α‐epimer of estrone methyl ether and of estrone methyl ether itself were carried out, making use of one‐ and two‐dimensional NMR techniques (1D HOHAHA, COSY, NOESY, TOCSY and HSQC). Copyright © 2001 John Wiley & Sons, Ltd.
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