You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Translate the chemical IUPAC name ethyl (3R)-1-[2-[(3S)-3-(2-chlorophenyl)-5-(2-methoxyphenyl)-3,4-dihydropyrazol-2-yl]-2-oxoethyl]piperidine-3-carboxylate into its molecular formula.
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C26H30ClN3O4
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