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 2-(2,6-dioxopiperidin-3-yl)-5-[[7-(methylaminomethyl)-5-azaspiro[2.4]heptan-5-yl]methyl]isoindole-1,3-dione ?
user
C22H26N4O4
assistant