A facile synthesis of 2-deoxy-2-hydroxymethyl-β-D-erythrofuranosyl nucleosides from 9-(2-deoxy-2-hydroxymethyl-β-D-erythrooxetanosyl)adenine by a novel ring expansion accompanying transglycosidation
Reaction of N-benzoyl oxetanocin diacetate with trimethylsilyl pyrimidine in the presence of SnCl4 gives both erythrofuranosyl pyrimidine and purine nucleosides.