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 N-[1-(cyclobutadienyl)-6-(2-hydroxypropan-2-yl)benzimidazol-2-yl]-3-hydroxy-3-methylbutanamide using the IUPAC nomenclature.
user
C19H23N3O3
assistant