You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
For the molecule named (1S,16R)-16-methoxy-5-oxa-10-azatetracyclo[8.7.0.01,13.02,7]heptadeca-2(7),12,14-trien-4-one;hydroiodide by IUPAC nomenclature, provide its molecular formula.
user
C16H20INO3
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