You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Convert the IUPAC name of a molecule 1-[5-[[(2R,3S)-3-amino-2-hydroxy-4-phenylbutyl]-(2-methylpropyl)sulfamoyl]-2-hydroxyphenyl]-3-ethylurea into molecular formula.
user
C23H34N4O5S
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