You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Name the molecular formula for the molecule established as 4-[5-(dimethylamino)-1a,7b-dihydro-1H-cyclopropa[a]naphthalen-1-yl]but-3-yn-2-one using the IUPAC nomenclature.
user
C17H17NO
assistant