You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Under IUPAC nomenclature, a molecule named 3-[[4-(6-chloro-2-methylimidazo[1,2-a]pyridin-3-yl)-1,3-thiazol-2-yl]methyl]-4-propan-2-yloxybenzamide is given. What is its corresponding molecular formula?
user
C22H21ClN4O2S
assistant