You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Convert the IUPAC name of a molecule 5-[(1-methylindol-4-yl)amino]-3-[[(3R)-piperidin-3-yl]amino]-1,2,4-triazine-6-carboxamide into molecular formula.
user
C18H22N8O
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