You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
tert-butyl N-[[5-[(2S,5R)-6-butoxy-7-oxo-1,6-diazabicyclo[3.2.1]octan-2-yl]-1,3,4-oxadiazol-2-yl]methyl]-N-[3-[(2-methylpropan-2-yl)oxycarbonylamino]cyclobutyl]carbamate is the IUPAC name of a molecule. Please give its molecular formula.
user
C27H44N6O7
assistant