Preparation, isolation, and characterization of Nα-Fmoc- peptide isocyanates: Solution synthesis of oligo-α-peptidyl ureas
(Chemical Equation Presented) The Nα-Fmoc-peptide isocyanates 3a-q, 4a-c, and 5a-c were prepared by the Curtius rearrangement of Nα-Fmoc-peptide acid azides in toluene under thermal, microwave, and ultrasonic conditions. All the Nsu