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 4-[2-[(5aS,8aS)-4-methyl-3,5,5a,6,8,8a-hexahydro-2H-pyrrolo[3,4-f][1,4]oxazepin-7-yl]-2-oxoethyl]benzonitrile;2,2,2-trifluoroacetic acid into molecular formula.
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C19H22F3N3O4
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