You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Convert the IUPAC name of a molecule N-[(2S,8aS)-8a-(cyclopropylcarbamoyl)-2,3,5,6,7,8-hexahydro-1H-indolizin-2-yl]quinoline-3-carboxamide into molecular formula.
user
C22H26N4O2
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