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 identified by 4-[[2-[[4-[(2-methylpropan-2-yl)oxycarbonylamino]cyclohexyl]amino]-9-propan-2-ylpurin-6-yl]amino]piperidine-1-carboxylic acid ?
user
C25H40N8O4
assistant