You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Convert the IUPAC name of a molecule 4-[4-[2-[1-[2-(diethylamino)ethyl]imidazol-4-yl]thieno[3,2-b]pyridin-7-yl]oxy-3-fluorophenyl]-N-methyl-3-oxo-N-phenylbutanamide into molecular formula.
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C33H34FN5O3S
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