Abstract
Three new spiroheterocyclic 2H-azirin-3-amines, which contain a sulfur atom, were prepared and successfully used for the synthesis of oligopeptides containing sulfur-heterocyclic α-amino acids via the “azirine/oxazolone method.”
GRAPHICAL ABSTRACT
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Acknowledgments
Financial support of our research project by the Swiss National Science Foundation and F. Hoffmann-La Roche AG, Basel, is gratefully acknowledged.