You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Please write the molecular formula of the molecule [3,4-difluoro-2-(2-fluoro-4-iodoanilino)phenyl]-[3-hydroxy-3-[(2-hydroxypropylamino)methyl]azetidin-1-yl]methanone .
user
C20H21F3IN3O3
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