You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
What is the molecular formula of the molecule ethyl 2-[(4-fluorophenyl)methyl-[2-(1-methyl-4-oxopyrazolo[3,4-d]pyrimidin-5-yl)acetyl]amino]-4-methyl-1,3-thiazole-5-carboxylate ?
user
C22H21FN6O4S
assistant