Synthesis of 5′-O-phosphonomethyl-2′,3′-didehydro-2′,3′-dideoxyuridine by use of P-methoxybenzyl as a N3-protecting group.
摘要:
Uridine derivatives are protected at N3-position with a p-methoxybenzyl group under Mitsunobu conditions. Selective removal is possible with ceric ammonium nitrate. The otherwise difficult to obtain 5'-O-phosphonomethyl d4U was prepared using this strategy.