You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Translate the chemical IUPAC name [2-(2-methoxy-4-morpholin-4-ylsulfonylanilino)-2-oxoethyl] 2-(1,3-dimethyl-2,6-dioxopurin-7-yl)acetate into its molecular formula.
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C22H26N6O9S
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