You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Name the molecular formula for the molecule established as 1-(4,6-dimethylpyrimidin-2-yl)-3-[2-(2-hydroxy-2-phenylacetyl)phenyl]sulfonylurea using the IUPAC nomenclature.
user
C21H20N4O5S
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