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-[2-(4-chlorophenyl)ethyl]-2-[2-[(4-methylpyridin-2-yl)amino]-1,3-thiazol-4-yl]acetamide .
user
C19H19ClN4OS
assistant