You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
tert-butyl 4-[(1R,2R)-2-[[(2R,4R,5R,6R)-5-[(2S,3R,4S,6R)-3-benzoyloxy-4-(dimethylamino)-6-methyloxan-2-yl]oxy-4-methoxy-2,4-dimethyl-6-(2,2,5-trimethyl-6-oxo-1,3-dioxin-4-yl)heptyl]amino]-1,3-dihydroxypropyl]piperidine-1-carboxylate The above is the IUPAC name of a molecule. Write its molecular formula.
user
C45H73N3O12
assistant