You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Can you give the molecular formula of the molecule 6-bromo-2-methyl-N-[(E)-naphthalen-1-ylmethylideneamino]imidazo[1,2-a]pyridine-3-carboxamide ?
user
C20H15BrN4O
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