You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
[2-cyano-2-[(4Z)-2-[(2,6-ditert-butylpyran-4-ylidene)methyl]-4-[(2,6-ditert-butylpyrylium-4-yl)methylidene]-3-oxocyclobuten-1-yl]ethenylidene]azanide The above is the IUPAC name of a molecule. Write its molecular formula.
user
C35H42N2O3
assistant