1-[(2R)-2-hydroxy-4-[(3S,5S,6R)-4-[(2-methylpropan-2-yl)oxycarbonyl]-2-oxo-5,6-diphenylmorpholin-3-yl]butyl]-5-[2-[(3S,5S,6R)-4-[(2-methylpropan-2-yl)oxycarbonyl]-2-oxo-5,6-diphenylmorpholin-3-yl]ethyl]-4-[[(3S,5S,6R)-4-[(2-methylpropan-2-yl)oxycarbonyl]-2-oxo-5,6-diphenylmorpholin-3-yl]methyl]pyridin-1-ium-3-olate 在
zinc dibromide 作用下,
以
二氯甲烷 为溶剂,
反应 3.0h,
以113 mg的产率得到1-[(2R)-2-hydroxy-4-[(3S,5S,6R)-2-oxo-5,6-diphenylmorpholin-3-yl]butyl]-5-[2-[(3S,5S,6R)-2-oxo-5,6-diphenylmorpholin-3-yl]ethyl]-4-[[(3S,5S,6R)-2-oxo-5,6-diphenylmorpholin-3-yl]methyl]pyridin-1-ium-3-olate