5-methyl-1-[(2R,4S,5R)-4-[morpholin-4-yl-(1,1,1-trichloro-2-methylpropan-2-yl)oxyphosphanyl]oxy-5-(trityloxymethyl)oxolan-2-yl]-1,3-diazinane-2,4-dione 在
endo-Bromcamphersulfonyloxaziridin
(13) 作用下,
以
乙醚 为溶剂,
反应 120.0h,
生成 Morpholin-4-yl-phosphonic acid (2R,3S,5R)-5-(5-methyl-2,4-dioxo-tetrahydro-pyrimidin-1-yl)-2-trityloxymethyl-tetrahydro-furan-3-yl ester 2,2,2-trichloro-1,1-dimethyl-ethyl ester