(2R,3S,5R)-2-((Bis(4-methoxyphenyl)(phenyl)methoxy)methyl)-5-(5-methyl-2-oxo-4-((2-(6-(2,2,2-trifluoroacetamido)hexanamido)ethyl)amino)pyrimidin-1(2H)-yl)tetrahydrofuran-3-yl methyl diisopropylphosphoramidate 1g

(2R,3S,5R)-2-((Bis(4-methoxyphenyl)(phenyl)methoxy)methyl)-5-(5-methyl-2-oxo-4-((2-(6-(2,2,2-trifluoroacetamido)hexanamido)ethyl)amino)pyrimidin-1(2H)-yl)tetrahydrofuran-3-yl methyl diisopropylphosphoramidate 1g