Sc(OTf) 3-Catalyzed Reaction of Purines with o-Hydroxybenzyl Alcohols for Construction of Acyclic Nucleosides
Chao Xia, Dongchao Wang, Haiming Guo
Chinese Journal of Organic Chemistry . 2021, (11): 4391 -4399 .  DOI: 10.6023/cjoc202106010