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 N-(1-ethylpiperidin-3-yl)-4-[6-(4-fluorophenyl)imidazo[2,1-b][1,3]thiazol-5-yl]pyrimidin-2-amine .
user
C22H23FN6S
assistant