(R,S)-N6-[(tert.-butyloxy)carbonyl]-N2-(diphenylacetyl)-lysine 、
4-羟基苄胺 在
O-(benzotriazol-1-yl)-N,N,N',N'-tetramethyluronium tetrafluoroborate 作用下,
以51%的产率得到(R,S)-N
6-[(tert.-butyloxy)carbonyl]-N
2-(diphenylacetyl)-N-[(4-hydroxyphenyl)methyl]lysinamide