You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Under IUPAC nomenclature, a molecule named 5-O-ethyl 2-O,3-O-dimethyl (2R,3R,5R)-2-phenylpyrrolidine-2,3,5-tricarboxylate is given. What is its corresponding molecular formula?
user
C17H21NO6
assistant