You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
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Translate the chemical IUPAC name 2-[2-[(5-chloro-1'-methoxycarbonylspiro[2H-indole-3,3'-pyrrolidine]-1-carbonyl)amino]-1,3-thiazol-4-yl]acetic acid into its molecular formula.
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C19H19ClN4O5S
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