You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Translate the chemical IUPAC name N-[(2S)-1-[1-(4-methoxyphenyl)-6-methyl-1,3,4,9-tetrahydropyrido[3,4-b]indol-2-yl]-1-oxo-3-phenylpropan-2-yl]acetamide into its molecular formula.
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C30H31N3O3
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