You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Convert the IUPAC name of a molecule tert-butyl 3-(1,1-difluoroethyl)-4-ethyl-2,2,3-trifluorocyclopentane-1-carboxylate;tert-butyl 3-(1,1-difluoroethyl)-2,2,3-trifluoro-5-methylcyclohexane-1-carboxylate;tert-butyl 5-ethyl-2,2,3,4,4-pentafluoro-3-methylcyclohexane-1-carboxylate into molecular formula.
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C42H63F15O6
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