You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
What is the molecular formula of the compound with this IUPAC name ethyl 2-[4-[6-[(5-phenyl-1,3-thiazol-2-yl)amino]pyridin-2-yl]piperidin-1-yl]acetate ?
user
C23H26N4O2S
assistant