What is the molecular formula of the compound with this IUPAC name N-[(9S,10R)-2,6-diamino-4-[(2,5-dioxopyrrolidin-1-yl)methyl]-10-hydroxy-1,3a,4,8,9,10-hexahydropyrrolo[1,2-c]purin-9-yl]-8-methylnaphthalene-1-carboxamide ?