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-(3,4-difluorophenyl)-1,3-thiazol-2-yl]-2-[(2-hydroxyphenyl)methyl-propylamino]acetamide .
user
C21H21F2N3O2S
assistant