You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Translate the chemical IUPAC name (3S,6R)-7-[1-(1-adamantyl)ethyl]-3-cyclohexyl-6-(2-methylpropyl)-2,3,5,6-tetrahydroimidazo[1,2-a]imidazole into its molecular formula.
user
C27H45N3
assistant