You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Provide the molecular formula for the IUPAC named substance methyl 7-[5-bromo-2-[(4-methylphenyl)methoxy]phenyl]-5-methyl-4,7-dihydrotetrazolo[1,5-a]pyrimidine-6-carboxylate .
user
C21H20BrN5O3
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