You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Translate the chemical IUPAC name (2S,4S)-4-amino-1-N-(1-carbamoylindol-3-yl)-2-N-[(4-methyl-1,3-thiazol-2-yl)methyl]pyrrolidine-1,2-dicarboxamide into its molecular formula.
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C20H23N7O3S
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