You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Please write the molecular formula of the molecule diethyl 13-(4-chlorophenyl)-6-oxo-11-phenyl-3,4,7,8,10-pentazatricyclo[7.4.0.02,7]trideca-1,3,8,10,12-pentaene-5,12-dicarboxylate .
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C26H20ClN5O5
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