Azopeptides: Synthesis and Pericyclic Chemistry
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Azopeptides possess an imino urea as an amino amide surrogate in the sequence. Azopeptides were synthesized by oxidation of aza-glycine residues and employed in pericyclic chemistry. Diels–Alder cyclizations and Alder–ene reactions on azopeptides enabled construction of constrained aza-pipecolyl and reactive aza-allylglycyl residues. X-ray crystallographic analyses of azopeptide 16a and azapeptides 30a and 35a provided insight into imino urea configuration and conformational affects of cycloalkane side chains at the semicarbazide α- and β-nitrogen, respectively.
创建时间：
2016-02-12
