Pfister M, Pfleiderer W
Fakultät für Chemie, Universität Konstanz, FRG.
Nucleic Acids Symp Ser. 1987(18):165-8.
A new approach to oligoribonucleotide synthesis has been developed by use of the p-nitrophenylethylsulfonyl group as a new versatile sugar protecting group. The synthesis of 3'-5'- and 2'-5'-cydidylyl-cytidine is performed in high yield.