(3aR,4R,6R,6aS)-tert-butyl 4-[(tert-butyldimethylsilyloxy)methyl]-2,2-dimethyl-6-[(E)-3-oxobut-1-enyl]dihydro-3aH-[1,3]dioxolo[4,5-c]pyrrole-5(4H)-carboxylate 在
硼烷四氢呋喃络合物 、 (S)-tetrahydro-1-butyl-3,3-diphenyl-1H,3H-pyrrolo{2,1-c}{1,3,2}oxazaborole 作用下,
以
四氢呋喃 、
甲苯 为溶剂,
反应 18.0h,
以91%的产率得到(3aR,4R,6R,6aS)-tert-butyl 4-[(tert-butyldimethylsilyloxy)methyl]-6-[(R,E)-3-hydroxybut-1-enyl]-2,2-dimethyldihydro-3aH-[1,3]dioxolo[4,5-c]pyrrole-5(4H)-carboxylate