You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
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For the molecule named (6R)-6-(4-fluorophenyl)-3-[(1S)-1-[4-(5-methyl-1,3,4-thiadiazol-2-yl)phenyl]ethyl]-6-prop-2-enyl-1,3-oxazinan-2-one;N-[2-[4-[(1S)-1-[(6R)-6-(4-fluorophenyl)-2-oxo-6-prop-2-enyl-1,3-oxazinan-3-yl]ethyl]phenyl]-2-oxoethyl]acetamide by IUPAC nomenclature, provide its molecular formula.
user
C49H51F2N5O6S
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