You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
For the molecule named (3S,4R,5R)-3-(3-methoxy-2-oxopropoxy)-4-(4-methoxyphenyl)-5-[[4-(3-methoxypropyl)-2,3-dihydro-1,4-benzoxazin-6-yl]methoxy]piperidine-1-carboxylic acid by IUPAC nomenclature, provide its molecular formula.
user
C30H40N2O9
assistant