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-(4,6-difluoro-1,3-benzothiazol-2-yl)-2-(4-ethylphenyl)-N-(pyridin-2-ylmethyl)acetamide .
user
C23H19F2N3OS
assistant