You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Translate the chemical IUPAC name 2-[6-(12-azapentacyclo[11.8.0.02,11.03,8.016,21]henicosa-1(13),2(11),3,5,7,9,14,16,18,20-decaen-12-yl)dibenzofuran-1-yl]-4-(4-phenylphenyl)-[1]benzothiolo[3,2-d]pyrimidine into its molecular formula.
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C54H31N3OS
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