You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
N-[(3S)-4-[2-[(2R,4R)-6-chloro-4-hydroxy-3,4-dihydro-2H-chromen-2-yl]-2-oxoethyl]-3-hydroxy-1-bicyclo[2.2.2]octanyl]-2-[3-(1,1-difluoroethoxy)cyclobutyl]oxyacetamide is the IUPAC name of a molecule. Please give its molecular formula.
user
C27H34ClF2NO7
assistant