You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
For the molecule named 28-(1-naphthalen-2-ylbenzo[f]quinazolin-3-yl)-3-oxa-28-azaheptacyclo[15.11.0.02,10.04,9.011,16.018,27.021,26]octacosa-1(17),2(10),4,6,8,11,13,15,18(27),19,21,23,25-tridecaene;28-(4-phenanthren-3-ylphenanthro[9,10-d]pyrimidin-2-yl)-3-oxa-28-azaheptacyclo[15.11.0.02,10.04,9.011,16.018,27.021,26]octacosa-1(17),2(10),4,6,8,11,13,15,18(27),19,21,23,25-tridecaene;28-[1-(3-phenylphenyl)benzo[f]quinazolin-3-yl]-3-oxa-28-azaheptacyclo[15.11.0.02,10.04,9.011,16.018,27.021,26]octacosa-1(17),2(10),4,6,8,11,13,15,18(27),19,21,23,25-tridecaene;28-[4-(4-phenylphenyl)benzo[h]quinazolin-2-yl]-3-oxa-28-azaheptacyclo[15.11.0.02,10.04,9.011,16.018,27.021,26]octacosa-1(17),2(10),4,6,8,11,13,15,18(27),19,21,23,25-tridecaene by IUPAC nomenclature, provide its molecular formula.
user
C204H116N12O4
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