You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Translate the chemical IUPAC name [2-(4-methoxyphenyl)-4,6,7,8-tetrahydropyrazolo[1,5-a][1,4]diazepin-5-yl]-(oxolan-3-yl)methanone into its molecular formula.
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C19H23N3O3
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