A new ribo-oligonucleotide block synthesized by phosphorylation with p-chlorophenyl N-phenylchlorophosphoramidate
Abstract
Two types of nucleotides (5) and (6) have been synthesized as key intermediates for fully protected oligoribonucleotides which are suitable for elongation of the chain in the 3′- and 5′-directions by the triester method; condensation of these nucleotides yielded a fully protected dinucleotide [e.g.(7)] in high yield.