You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Translate the chemical IUPAC name 8-[(2R,6S)-2-methyl-6-[(6-piperazin-1-yl-3,4-dihydro-1H-isoquinolin-2-yl)methyl]morpholin-4-yl]quinoxaline-5-carbonitrile into its molecular formula.
user
C28H33N7O
assistant