You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
5-methyl-N-(4-methylphenyl)-7-naphthalen-1-yl-2-propylsulfanyl-4,7-dihydro-[1,2,4]triazolo[1,5-a]pyrimidine-6-carboxamide The above is the IUPAC name of a molecule. Write its molecular formula.
user
C27H27N5OS
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