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 [2-[(4aR,8aR)-3,4,4a,5,6,7,8,8a-octahydro-1H-isoquinolin-2-yl]-2-oxoethyl] 2,3-dimethyl-1H-indole-5-carboxylate .
user
C22H28N2O3
assistant