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 (1S,2S,3S,4R,5S)-6-diphenoxyphosphoryl-2,3,4-trimethoxy-5-methyl-8-oxa-6-azabicyclo[3.2.1]octane ?
user
C22H28NO7P
assistant