You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Translate the chemical IUPAC name (2R)-N-(2-chloro-4-fluorophenyl)-2-[[5-[(2S)-oxolan-2-yl]-1H-1,2,4-triazol-3-yl]sulfanyl]propanamide into its molecular formula.
user
C15H16ClFN4O2S
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