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 (2S)-2-[4-(4,4-dimethylpiperidin-1-yl)-5-[5-(4-fluorobutoxy)pyridin-2-yl]-2-methylpyridin-3-yl]-2-[(2-methylpropan-2-yl)oxy]acetic acid .
user
C28H40FN3O4
assistant