You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
4-but-3-ynyl-8H-pyrano[3,2-c]pyridine-2,5,7-trione;4-(4-cyclopropylbutyl)-8H-pyrano[3,2-c]pyridine-2,5,7-trione;4-(2-cyclopropylethyl)-8H-pyrano[3,2-c]pyridine-2,5,7-trione;4-(cyclopropylmethyl)-8H-pyrano[3,2-c]pyridine-2,5,7-trione;4-(3-cyclopropylpropyl)-8H-pyrano[3,2-c]pyridine-2,5,7-trione;4-pent-4-enyl-8H-pyrano[3,2-c]pyridine-2,5,7-trione is the IUPAC name of a molecule. Please give its molecular formula.
user
C79H78N6O24
assistant