You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
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Under IUPAC nomenclature, a molecule named 2-(4,14-difluoro-8,8-dioxo-8lambda6-thia-9-azatetracyclo[7.6.1.02,7.012,16]hexadeca-1(15),2(7),3,5,10,12(16),13-heptaen-11-yl)-N,N-dimethylethanamine is given. What is its corresponding molecular formula?
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C18H16F2N2O2S
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