You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Can you give the molecular formula of the molecule (1R,6S,7S,8S)-8-[(3-methyl-1-phenylpyrazol-4-yl)methylamino]bicyclo[4.2.0]octane-7-carboxylic acid ?
user
C20H25N3O2
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