3-[[(1r,3s,4s,6r,7s)-4-[[bis(4-methoxyphenyl)-phenylmethoxy]methyl]-3-methyl-6-(5-methyl-2,4-dioxopyrimidin-1-yl)-2,5-dioxabicyclo[2.2.1]heptan-7-yl]oxy-[di(propan-2-yl)amino]phosphanyl]oxypropanenitrile
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