A New Route to Famciclovir via Palladium Catalysed Allylation
2000
Abstract An efficient route to the acyclic nucleoside analogue famciclovir has been developed based on a palladium(0) catalysed coupling of 2-amino-6-chloropurine and an allylic carbonate sidechain derived from 2,2-dimethyl-1,3-dioxan-5-one. The reaction proceeds via a highly N-9 regioselective purine allylation step involving a novel palladium mediated N-7 to N-9 rearrangement.
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