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 2-[(2R,5S)-4-(6-cyano-1-methyl-2-oxo-1,5-naphthyridin-4-yl)-2,5-dimethylpiperazin-1-yl]-N-cyclopropylpropanamide .
user
C22H28N6O2
assistant