You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Can you give the molecular formula of the molecule phenyl (3aS,7aR)-3a-[5-methoxy-2-(2-oxoethyl)phenyl]-3,4,5,6,7,7a-hexahydro-2H-indole-1-carboxylate ?
user
C24H27NO4
assistant