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Complete 1H and 13C NMR chemical shift assignment of N1- and N3-alkylnitrohistidines and of 1,4,6,7-tetrahydroimidazo[4,5-b]pyridines

✍ Scribed by Carmen Escolano; Marcelo J. Kogan; Mario Rubiralta; Ernest Giralt; Anna Diez

Publisher
John Wiley and Sons
Year
2003
Tongue
English
Weight
93 KB
Volume
41
Category
Article
ISSN
0749-1581

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✦ Synopsis

Abstract

^1^H and ^13^C NMR data for 13 nitrohistidine derivatives are reported, providing a diagnostic method for the elucidation of the N^1^‐(2) and the N^3^‐substituted (3) regioisomers. Spectral assignments of constrained surrogates of His (4) and of the His–Gly dipeptide (5 and 6) are also described. The structure of the compounds was confirmed by NOESY and heteronuclear (^13^C, ^1^H) short‐ and long‐range correlation experiments. Copyright © 2003 John Wiley & Sons, Ltd.

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