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Carbon-13 NMR studies of thyroid hormones and model compounds. The conformational analysis of diphenyl ethers

✍ Scribed by Paul H. Mazzocchi; Herman L. Ammon; Sr. Elena Colicelli

Publisher: John Wiley and Sons
Year: 1978
Tongue: English
Weight: 676 KB
Volume: 11
Category: Article
ISSN: 0749-1581
DOI: 10.1002/mrc.1270110310

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✦ Synopsis

The 13C spectra of a series of thyroid hormones and derivatives including thyroxine (T4) sodium salt, T,-N-acetyl methyl ester, triiodothyronine (T3), T,-sodium salt, T3-methyl ester hydrochloride, sodium triiodothyroacetate apd ethyl triiodothyropropionate were assigned using chemical shift trends from model compounds, coupling constants and relaxation times. The 13C spectra of a series of diphenyl ethers were assigned and the chemical shift trends observed were analyzed on the basis of conformational changes engendered by mesomeric or steric effects.

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