You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Under IUPAC nomenclature, a molecule named N-[(1S,2R)-2-(5-methoxy-1H-indol-3-yl)cyclohexyl]pyridine-2-carboxamide is given. What is its corresponding molecular formula?
user
C21H23N3O2
assistant