(3aS,4R,6aR)-4-ethynyl-2,2-dimethyltetrahydrofuro[3,4-d][1,3]dioxole 、
(2R,3R,4R)-3,4-bis(benzyloxy)-2-((benzyloxy)methyl)-3,4-dihydro-2H-pyrrole 1-oxide 在
copper(l) iodide 作用下,
以
乙腈 为溶剂,
反应 5.25h,
以92%的产率得到(2R,3R,4R)-3,4-bis(benzyloxy)-2-(benzyloxymethyl)-6-[(3aR,6R,6aS)-tetrahydro-2,2-dimethylfuro[3,4-d][1,3]dioxol-6-yl]-1-azabicyclo[3.2.0]heptan-7-one