You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Please write the molecular formula of the molecule 1'-[2-[(E)-2-amino-1-fluoroethenyl]pyrimidin-4-yl]-5-(3-fluorophenyl)spiro[5,6,7,7a-tetrahydropyrrolo[2,1-b][1,3]oxazole-2,4'-piperidine]-3-one .
user
C22H23F2N5O2
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