You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
2-[2,2-dideuterio-1-[(2,3,4,5,6-pentadeuteriophenyl)methyl]piperidin-4-yl]ethyl (2S,6R)-2,6-dimethyl-4-[5-(trifluoromethyl)pyrazin-2-yl]piperazine-1-carboxylate The above is the IUPAC name of a molecule. Write its molecular formula.
user
C26H34F3N5O2
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