You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Convert the IUPAC name of a molecule (4aS,5R,8aS,9S)-9-(dimethylamino)-4a,5-dihydroxy-3-phenylmethoxy-5,8,8a,9-tetrahydrobenzo[f][1,2]benzoxazol-4-one;(4aS,8aS,9S)-9-(dimethylamino)-4a-hydroxy-3-phenylmethoxy-8a,9-dihydro-8H-benzo[f][1,2]benzoxazole-4,5-dione into molecular formula.
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C40H42N4O10
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