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 4-hydroxy-5-[[4-[2-(6-hydroxy-2-methyl-4-oxo-3H-chromen-2-yl)ethoxy]phenyl]methyl]-3H-1,3-thiazol-2-one .
user
C22H21NO6S
assistant