You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Convert the IUPAC name of a molecule 8-[2-[7-[(1Z)-buta-1,3-dienyl]-6-methyl-3-thia-24-azahexacyclo[15.7.0.02,10.04,9.011,16.018,23]tetracosa-1(17),2(10),4(9),5,7,11,13,15,18,20,22-undecaen-24-yl]benzo[f]quinoxalin-3-yl]-[1]benzofuro[2,3-c]pyridine into molecular formula.
user
C50H30N4OS
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