You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Convert the IUPAC name of a molecule 3-[3-amino-1-(2,4-dichlorophenyl)sulfonyl-6-[(4-nitrophenyl)methyl]-4,7-dioxo-8-propan-2-yl-2,3,6,9-tetrahydropyrazino[1,2-a]pyrimidin-9a-yl]-6-[(4-aminophenyl)methyl]-1-(2,4-dichlorophenyl)sulfonyl-4,7-dioxo-8-propan-2-yl-2,3,6,9-tetrahydropyrazino[1,2-a]pyrimidine-9a-carboxamide into molecular formula.
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C47H50Cl4N10O11S2
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