You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
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Can you give the molecular formula of the molecule [6-[3-(3,4,6,7,8,8a-hexahydro-1H-pyrrolo[2,1-c][1,4]oxazin-3-yl)-1,2,4-oxadiazol-5-yl]pyridin-2-yl]-pyrrolidin-1-ylmethanone ?
user
C19H23N5O3
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