(2S)-2-acetamido-N-hex-5-ynyl-3-methylbutanamide 、
(2S)-2-(5-azidopentanoylamino)-N,N-diethyl-3-methylbutanamide 在
copper(II) sulfate 、
sodium ascorbate 作用下,
以
叔丁醇 为溶剂,
以67%的产率得到(2S)-2-acetamido-N-[4-[1-[5-[[(2S)-1-(diethylamino)-3-methyl-1-oxobutan-2-yl]amino]-5-oxopentyl]triazol-4-yl]butyl]-3-methylbutanamide