You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Provide the molecular formula for the IUPAC named substance N-(4-methoxyphenyl)-1-[(5-methyl-2-thiophen-2-yl-1,3-oxazol-4-yl)methyl]pyrrolidine-2-carboxamide .
user
C21H23N3O3S
assistant