You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
For the molecule named 1-(2-adamantyloxy)ethyl 2,2-dimethylbutanoate;1-(2-adamantyloxy)ethyl 2-methylbutanoate;1-(2-bicyclo[2.2.1]heptanyloxy)ethyl 2,2-dimethylbutanoate;1-(2-bicyclo[2.2.1]heptanyloxy)ethyl 2-methylbutanoate;methane;1-(4-tetracyclo[6.2.1.13,6.02,7]dodecanyloxy)ethyl 2,2-dimethylbutanoate;1-(4-tetracyclo[6.2.1.13,6.02,7]dodecanyloxy)ethyl 2-methylbutanoate by IUPAC nomenclature, provide its molecular formula.
user
C115H218O18
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