You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
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Under IUPAC nomenclature, a molecule named (6R)-N-[4-(isocyanomethylamino)-4-oxobutyl]-N,9-dimethyl-6-(oxan-4-yl)-5,6,7,8-tetrahydrocarbazole-3-carboxamide;4-[methyl-[(6R)-9-methyl-6-(oxan-4-yl)-5,6,7,8-tetrahydrocarbazole-3-carbonyl]amino]butanoic acid is given. What is its corresponding molecular formula?
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C50H66N6O7
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