Assignment of the1H and13C NMR spectra of the C21 steroids 12-β-O-acetyltenacigenin A and tenacigenin A by two-dimensional NMR techniques and computer modeling
| Autor: | Geoffrey A. Cordell, Si-Qi Luo, Long-Ze Lin, Michael E. Johnson, Liang Xue |
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| Rok vydání: | 1993 |
| Předmět: |
Molecular model
Chemistry medicine.medical_treatment Pulse sequence General Chemistry Nuclear magnetic resonance spectroscopy Nuclear Overhauser effect Carbon-13 NMR Spectral line Steroid Nuclear magnetic resonance medicine General Materials Science Two-dimensional nuclear magnetic resonance spectroscopy |
| Zdroj: | Magnetic Resonance in Chemistry. 31:215-221 |
| ISSN: | 1097-458X 0749-1581 |
| DOI: | 10.1002/mrc.1260310302 |
| Popis: | Stereochemical assignments of the C 21 , steroids 12-β-O-acetyltenacigenin A and tenacigenin A were performed by use of two-dimensional phase-sensitive COSY, ROESY, 1 H and 13 C shift correlation spectroscopy (HETCOR and FLOCK), and ambiguous assignments were resolved through molecular modeling comparisons. This combination of techniques is applicable for the assignment of the highly overlapped 1 H signals of these steroids |
| Databáze: | OpenAIRE |
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