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 ethyl 4-methyl-2-[[2-[4-(2-methyl-1,3-thiazol-4-yl)phenyl]acetyl]amino]-1,3-thiazole-5-carboxylate .
user
C19H19N3O3S2
assistant