Nicola K. Lembicz, Sharon Grant, William Clegg, Roger J. Griffin, Sarah L. Heath and Bernard T. Golding
Reactions of 6-chloropurines with 1,4-diazabicyclo[2.2.2]octane (DABCO) give the corresponding ‘DABCO-purines’ 1a–d, which undergo facile displacement reactions with alkoxides in dimethyl sulfoxide to afford 6-oxy-substituted purines.