You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Convert the IUPAC name of a molecule N-[(3aS,4S,9S,10aS)-2,6-diamino-4-[(2,5-dioxopyrrolidin-1-yl)methyl]-10,10-dihydroxy-3a,4,8,9-tetrahydro-1H-pyrrolo[1,2-c]purin-3-ium-9-yl]-2-(trifluoromethyl)benzamide into molecular formula.
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C21H24F3N8O5+
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