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 (5-cyclopropyl-1,2-oxazol-3-yl)-[8-(pyridin-3-ylmethoxy)-5-oxa-2-azaspiro[3.5]nonan-2-yl]methanone ?
user
C20H23N3O4
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