You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
7,7-dimethyl-15-phenanthren-3-yl-4-thia-1-azapentacyclo[10.6.1.02,6.08,19.013,18]nonadeca-2,5,8,10,12(19),13(18),14,16-octaene;7,7-dimethyl-15-spiro[4,4a-dihydrofluorene-9,9'-fluorene]-2'-yl-4-thia-1-azapentacyclo[10.6.1.02,6.08,19.013,18]nonadeca-2,5,8,10,12(19),13(18),14,16-octaene;15-(3,5-diphenylphenyl)-7,7-dimethyl-3-thia-1-azapentacyclo[10.6.1.02,6.08,19.013,18]nonadeca-2(6),4,8,10,12(19),13(18),14,16-octaene;15-(3,5-diphenylphenyl)-7,7-dimethyl-4-thia-1-azapentacyclo[10.6.1.02,6.08,19.013,18]nonadeca-2,5,8,10,12(19),13(18),14,16-octaene is the IUPAC name of a molecule. Please give its molecular formula.
user
C151H108N4S4
assistant