uridine 5'-monophosphomorpholidate 、
Phosphoric acid mono-((2R,3R,4S,5S,6S)-6-difluoromethyl-3,4,5-trihydroxy-tetrahydro-pyran-2-yl) ester 在
吡啶 、
四氮唑 、
N,N'-二环己基碳二亚胺 作用下,
生成 [[(2R,3S,4R,5R)-5-(4-amino-2-oxopyrimidin-1-yl)-3,4-dihydroxyoxolan-2-yl]methoxy-hydroxyphosphoryl] [(2R,3R,4S,5S,6S)-6-(difluoromethyl)-3,4,5-trihydroxyoxan-2-yl] hydrogen phosphate