You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Please write the molecular formula of the molecule (6-methylimidazo[1,2-a]pyridin-2-yl)methyl 3-(4-fluorophenyl)-2-methylsulfanylimidazole-4-carboxylate .
user
C20H17FN4O2S
assistant