You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Name the molecular formula for the molecule established as N-[2-(4-methoxyphenyl)ethyl]-2-[2-(2-pyridin-2-ylethyl)-1,3-thiazol-4-yl]acetamide using the IUPAC nomenclature.
user
C21H23N3O2S
assistant