You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
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Convert the IUPAC name of a molecule N-benzyl-6-[(4-hydroxyphenyl)methyl]-8-[1H-indol-7-yl(pyridin-2-yl)methyl]-4,7-dioxo-2-prop-2-enyl-3,6,9,9a-tetrahydropyrazino[2,1-c][1,2,4]triazine-1-carboxamide into molecular formula.
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C38H37N7O4
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