Iodonium ion (NIS/TfOH)-assisted glycosylation of a sugar acceptor with properly protected ethyl (phenyl) 2-O-phenoxythiocarbonyl 1-thio-β-D-gluco- or 1-thio-α-D-mannopyranoside donors gives the respective 1,2-trans linked 2′-ethyl (phenyl) thio-2′-deoxy-α-D-manno- or β-D-glucopyranosides.
用适当保护的乙基(苯基)2 - O-苯氧基
硫羰基1-
硫-β-
D-葡萄糖或1-
硫代-α-D-甘露
吡喃糖苷供体的
碘受体的
碘鎓离子(NIS / TfOH)辅助糖基化反应分别给出1,2-反式连接的2'-乙基(苯基)
硫基-2'-脱氧-α-
D-甘露糖苷或β-
D-吡喃葡萄糖苷。