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 methyl 5-[(2R)-2-[2-[(3aS,7aS)-1,3-dioxo-3a,4,7,7a-tetrahydroisoindol-2-yl]acetyl]oxypropanoyl]-2,4-dimethyl-1H-pyrrole-3-carboxylate ?
user
C21H24N2O7
assistant