You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Provide the molecular formula for the IUPAC named substance (3aR,4R,7S,7aR)-4-(hydroxymethyl)-7-methyl-3a,7a-dihydro-4,7-epoxyisoindole-1,3-dione .
user
C10H11NO4
assistant