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 3-[7-[[[2-(azetidin-3-yl)triazol-4-yl]amino]methyl]-3-oxo-1H-isoindol-2-yl]piperidine-2,6-dione .
user
C19H21N7O3
assistant