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What is the molecular formula of the molecule identified by [(2R,5S)-3-[[4-(acetyloxymethyl)phenoxy]-methylphosphoryl]oxy-4-[1-(9H-fluoren-9-yl)ethoxycarbonylamino]-5-methyloxolan-2-yl]methyl 2,2-dimethylpropanoate;(2R,5S)-4-amino-2-(hydroxymethyl)-5-methyloxolan-3-ol;[(2R,5S)-3-[[4-[[bis(4-methoxyphenyl)-phenylmethoxy]methyl]phenoxy]-hydroxyphosphoryl]oxy-4-[1-(9H-fluoren-9-yl)ethoxycarbonylamino]-5-methyloxolan-2-yl]methyl 2,2-dimethylpropanoate;[(2R,5S)-3-[[4-[[bis(4-methoxyphenyl)-phenylmethoxy]methyl]phenoxy]-methylphosphoryl]oxy-4-[1-(9H-fluoren-9-yl)ethoxycarbonylamino]-5-methyloxolan-2-yl]methyl 2,2-dimethylpropanoate;[(2R,5S)-3-[[4-[(2,5-dioxopyrrolidin-1-yl)oxycarbonyloxymethyl]phenoxy]-methylphosphoryl]oxy-4-[1-(9H-fluoren-9-yl)ethoxycarbonylamino]-5-methyloxolan-2-yl]methyl 2,2-dimethylpropanoate;[(2R,5S)-4-[1-(9H-fluoren-9-yl)ethoxycarbonylamino]-3-hydroxy-5-methyloxolan-2-yl]methyl 2,2-dimethylpropanoate;[(2R,5S)-4-[1-(9H-fluoren-9-yl)ethoxycarbonylamino]-3-[[4-(hydroxymethyl)phenoxy]-methylphosphoryl]oxy-5-methyloxolan-2-yl]methyl 2,2-dimethylpropanoate;1-(9H-fluoren-9-yl)ethyl N-[(2S,5R)-4-hydroxy-5-(hydroxymethyl)-2-methyloxolan-3-yl]carbamate ?
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C278H320N9O69P5
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