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A demonstration of aldehyde-lactol tautomerism in gossypol by1H and13C NMR spectroscopy

โœ Scribed by F. G. Kamaev; N. I. Baram; A. I. Ismailov; V. B. Leont'ev; A. S. Sadykov

Book ID
112449878
Publisher
Springer
Year
1979
Tongue
English
Weight
543 KB
Volume
28
Category
Article
ISSN
1573-9171

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## Abstract The tautomerism of 5(6)โ€methoxyโ€2โ€{[(4โ€methoxyโ€3,5โ€dimethylโ€2โ€pyridinyl)methyl] sulfinyl}โ€1__H__โ€benzimidazole (omeprazole) was determined in solution, __K__~__T__~ = 0.59 in THF at 195 K, in favor of the 6โ€methoxy tautomer. The assignment of the signals was made by comparison with its