You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
11-carbamoyl-4-[N'-[(4-methoxyphenyl)methyl]carbamimidoyl]-18,20-dioxo-19-azahexacyclo[12.9.0.02,7.03,21.08,13.012,17]tricosa-1,3(21),4,6,8,10,12(17),13,15,22-decaene-6-carboxylic acid is the IUPAC name of a molecule. Please give its molecular formula.
user
C33H22N4O6
assistant