You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
What is the molecular formula of the compound with this IUPAC name 1-(1-cyclohexyl-2,3,3a,5,6,6a-hexahydropyrrolo[3,2-b]pyrrol-4-yl)-2-(methylamino)ethanone ?
user
C15H27N3O
assistant