You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Translate the chemical IUPAC name 4-(hydroxymethyl)-5-methyl-N-[[1-(2-methylphenyl)pyrrolidin-3-yl]methyl]-1,2-oxazole-3-carboxamide into its molecular formula.
user
C18H23N3O3
assistant