You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Under IUPAC nomenclature, a molecule named 13,27-diethyl-26-hydroxy-9,13,23,27-tetrazaoctacyclo[13.13.2.02,10.03,8.011,30.016,24.017,22.025,29]triaconta-1,3,5,7,10,15,17,19,21,23,25,29-dodecaene-12,14,28-trione is given. What is its corresponding molecular formula?
user
C30H20N4O4
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