| http://www.w3.org/ns/prov#value | - (2) deprotecting the pendant amino group by removing Pr1 in compound (IIa) under conditions which may or may not remove Pr2 and thereafter reacting the deprotected compound with an amino acid of the formula Pr3 X2 Rx wherein X2 is as previously described, Pr3 is a protecting group and Rx is a leaving group, so as to covalently link X2 to the pendant amino group, and in the case where the 5'-OH gro
|
