You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Can you give the molecular formula of the molecule 4-[4-[5-[2-methylpropyl(phenyl)carbamoyl]pyridin-2-yl]piperazine-1-carbonyl]cyclohexane-1-carboxylic acid ?
user
C28H36N4O4
assistant