You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
3-cyclohexyl-16-[2-(4-methylpiperazin-1-yl)ethyl]-10,14-diazapentacyclo[12.6.1.02,10.04,9.017,21]henicosa-1(20),2,4(9),5,7,15,17(21),18-octaene-7-carboxylic acid The above is the IUPAC name of a molecule. Write its molecular formula.
user
C33H40N4O2
assistant