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 5-(3,4-dichlorophenyl)-7-(4-methoxyphenyl)-6,7-dihydro-[1,2,4]triazolo[1,5-a]pyrimidine .
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C18H14Cl2N4O
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