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 acetaldehyde;N-[4-[(2S,3S)-4-[(5-chloropyrimidin-2-yl)amino]-2-ethyl-1,3-dimethyl-3,4-dihydro-2H-quinolin-6-yl]phenyl]hex-5-enamide .
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C31H38ClN5O2
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