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 (5S,7S)-7-[(6-isocyanobenzimidazol-1-yl)methyl]-3-[(1-methylcyclobutyl)methyl]-1-oxa-3-azaspiro[4.5]decan-2-one using the IUPAC nomenclature.
user
C23H28N4O2
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