You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
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Convert the IUPAC name of a molecule 5-[4-[[(3R)-3-hydroxy-3-[(E,2S)-6-[4-(2-hydroxyethyl)triazol-1-yl]hex-3-en-2-yl]-2-oxo-5-(6-oxobenzo[b][1,4]benzoxazepin-5-yl)indol-1-yl]methyl]phenyl]benzo[b][1,4]benzoxazepin-6-one into molecular formula.
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C51H42N6O7
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