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 1-[3-(cyclohexylamino)-2-methylimidazo[1,2-a]pyrimidin-4-ium-1-yl]ethanone using the IUPAC nomenclature.
user
C15H21N4O+
assistant