You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Provide the molecular formula for the IUPAC named substance (4,5-dichloro-1-methylpyrrol-2-yl)-[(2R)-2-[(4-methylpyrazol-1-yl)methyl]pyrrolidin-1-yl]methanone .
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C15H18Cl2N4O
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