ISSN:
0749-1581
Schlagwort(e):
Chemistry
;
Analytical Chemistry and Spectroscopy
Quelle:
Wiley InterScience Backfile Collection 1832-2000
Thema:
Chemie und Pharmazie
Notizen:
The NMR spectra of eighteen 7α- and 7β-substituted 6,14-bridged thebaine derivatives are reported and the steric and other effects of the 7-substituent on the C-5-H atoms examined. Although the H-5 proton shift enabled compounds epimeric at C-7 to be distinguished in the examples studied (values falling between δ 4.75-4.40 ppm in the 7α series and δ 5.21-4.97 ppm in the 7β series), the C-5 shift values proved less useful owing to overlapping ranges.
Zusätzliches Material:
3 Tab.
Materialart:
Digitale Medien
URL:
http://dx.doi.org/10.1002/mrc.1260230610
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