You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Translate the chemical IUPAC name (2R)-2-(2-bromophenyl)-4-[(1S)-1-[5-(2-fluorophenyl)-1,3,4-thiadiazol-2-yl]ethyl]morpholine into its molecular formula.
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C20H19BrFN3OS
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