You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
(3S)-2-tert-butyl-3-[[(2,2,2-trifluoroacetyl)amino]methyl]pyrrolidine-1-carboxylic acid The above is the IUPAC name of a molecule. Write its molecular formula.
user
C12H19F3N2O3
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