You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Convert the IUPAC name of a molecule 2-(4-methoxyphenyl)-7-methyl-N-[[(2S)-oxolan-2-yl]methyl]imidazo[1,2-a]pyridin-3-amine into molecular formula.
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C20H23N3O2
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