You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
1-[(3aS,4R,6aR)-2-(4-hydroxycyclohexanecarbonyl)-4-(4-methoxyphenyl)-1,3,3a,4,6,6a-hexahydropyrrolo[3,4-c]pyrrol-5-yl]ethanone The above is the IUPAC name of a molecule. Write its molecular formula.
user
C22H30N2O4
assistant