ISSN:
0749-1581
Keywords:
2D NMR (DQF-COSY ROESY, HETCOR, FLOCK)
;
Conformation C21 steroids
;
12-β-O-Acetyltenacigenin A
;
Tenacigenin A
;
Marsdenia tenacissima
;
Chemistry
;
Analytical Chemistry and Spectroscopy
Source:
Wiley InterScience Backfile Collection 1832-2000
Topics:
Chemistry and Pharmacology
Notes:
Stereochemical assignments of the C21 steroids 12-β-O-acetyltenacigenin A and tenacigenin A were performed by use of two-dimensional phase-sensitive COSY, ROESY, 1H and 13C 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 1H signals of these steroids.
Additional Material:
3 Ill.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1002/mrc.1260310302
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