N-tert-Butoxycarbonylmethyl-6-O-triphenylmethyl-2-C:1-N-carbonyl-2-deoxy-α-D-galactopyranosylamine 在
ammonium sulfate 、
sodium periodate 作用下,
以
叔丁醇 为溶剂,
反应 0.5h,
生成 [(2S,3S)-3-Formyl-2-((R)-1-formyl-2-trityloxy-ethoxy)-4-oxo-azetidin-1-yl]-acetic acid tert-butyl ester