You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
What is the molecular formula of the molecule [2-[(4aR,8aS)-3,4,4a,5,6,7,8,8a-octahydro-2H-quinolin-1-yl]-2-oxoethyl] (E)-3-(3-chloro-4,5-dimethoxyphenyl)prop-2-enoate ?
user
C22H28ClNO5
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