You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Convert the IUPAC name of a molecule [2-[(4aS,8aR)-3,4,4a,5,6,7,8,8a-octahydro-2H-quinolin-1-yl]-2-oxoethyl] 2-(2-thiophen-3-yl-1,3-thiazol-4-yl)acetate into molecular formula.
user
C20H24N2O3S2
assistant