Ureins are obtained by reaction, in basic medium, between an N
&ohgr;
-(aryloxycarbonyl)diamino acid and a compound containing a free amino group. The chirality of the compounds is outstandingly well preserved.
在碱性介质中,N&ohgr;-(芳氧羰基)二胺酸与含有游离
氨基的化合物发生反应,可获得
脲苷。这种化合物的手性保持得非常好。