The reaction of equivalent amounts of benzyloxycarbonyl-L-valine and NN′-di-isopropylcarbodi-imide in deuteriochloroform at room temperature is very fast and clean giving an O-acylisourea adduct which is stable in solution for many hours and which has been characterised by n.m.r. spectroscopy.
苄氧羰基-
L-缬氨酸和等量的反应NN '在室温下二- isopropylcarbodi
酰亚胺在
氘氯仿中是非常快速且干净给人一种ö -acylisourea加合物在溶液中稳定几个小时,并已特征在于核磁共振光谱。