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 2-hydroxybutanedioic acid;3-[9-methoxy-3-[[(1S,5R)-8-oxabicyclo[3.2.1]octan-3-yl]methyl]-3-azabicyclo[3.3.1]nonan-9-yl]benzamide .
user
C28H40N2O8
assistant