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 ethane;[3-methyl-4-(2-methylprop-1-enyl)piperazin-1-yl]-(5-quinoxalin-6-yl-7H-cyclopenta[b]pyridin-3-yl)methanone .
user
C28H33N5O
assistant