You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
(7R)-7-(2,3-dimethoxyphenyl)-N-(4-ethoxyphenyl)-5-(3-methoxyphenyl)-4,7-dihydropyrazolo[1,5-a]pyrimidine-3-carboxamide is the IUPAC name of a molecule. Please give its molecular formula.
user
C30H30N4O5
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