You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Convert the IUPAC name of a molecule ethane;3-methylpentane;propan-2-yl (3S)-4-(cyclopropanecarbonyl)-3-methyl-7-pentan-3-yl-2,3,4a,5,6,7,8,8a-octahydroquinoxaline-1-carboxylate into molecular formula.
user
C30H58N2O3
assistant