You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
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Under IUPAC nomenclature, a molecule named 6-[[(1R)-1-cyclobutylethyl]amino]-8-(2-ethoxy-5-ethylphenyl)-7-[[4-(trifluoromethyl)phenyl]methyl]purine-2-carboxylic acid is given. What is its corresponding molecular formula?
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C30H32F3N5O3
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