You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
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Can you give the molecular formula of the molecule methyl (2'S)-1-chloro-5-methyl-9-(trifluoromethoxy)spiro[1,2-dihydropyrano[2,3-c]quinoline-3,4'-pyrrolidine]-2'-carboxylate ?
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C19H18ClF3N2O4
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