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'-[1-(hydroxymethyl)cyclopropanecarbonyl]-2-morpholin-4-ylspiro[5,6-dihydro-3H-cyclopenta[d]pyrimidine-7,4'-piperidine]-4-one .
user
C20H28N4O4
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