Bi(OTf)3 promoted direct and highly stereoselective glycosylation of “disarmed” and “armed” glycals to synthesize 2-deoxyglycosides has been reported. The tunable and solvent-controlled chemoselective activation of deactivated glycal donors distinguishing the competitive Ferrier and 1,2-addition pathways was discovered to improve substrate scope. The practical versatility of the method has been amply
据报道,Bi(OTf) 3促进“解除武装”和“武装”糖苷的直接和高度立体选择性糖基化以合成 2-脱氧糖苷。发现可调谐和溶剂控制的
化学选择性激活失活的糖供体区分竞争性 Ferrier 和 1,2-加成途径,以改善底物范围。该方法的实用多功能性已通过高价值
天然产物和药物的
寡糖合成和 2-脱氧糖基化得到充分证明。