You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
For the molecule named 1-[2-[2-[3-[[4-[3-[1-(2,6-dioxopiperidin-3-yl)-3-methyl-2-oxobenzimidazol-4-yl]propoxy]piperidin-1-yl]methyl]phenyl]ethynyl]pyridin-4-yl]-3-[2-fluoro-5-(hydroxymethyl)pyridin-4-yl]urea by IUPAC nomenclature, provide its molecular formula.
user
C42H43FN8O6
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