You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
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Under IUPAC nomenclature, a molecule named 4-butyl-6-phenylmethoxy-8H-pyrano[3,2-c]pyridine-2,5,7-trione;6-cyclobutyl-4-(3-cyclopropylpropyl)-8H-pyrano[3,2-c]pyridine-2,5,7-trione;5-(2-cyclopropylethyl)-1-(2-methoxyethyl)-2-methylidenepyrano[2,3-d]pyrimidine-4,7-dione;4-(2-cyclopropylethyl)-6-propyl-8H-pyrano[3,2-c]pyridine-2,5,7-trione is given. What is its corresponding molecular formula?
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C69H79N5O17
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