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system
Name the molecular formula for the molecule established as 1'-[(2R)-2-amino-3-methylbutanoyl]-5-propan-2-ylspiro[2-oxa-5-azabicyclo[10.4.0]hexadeca-1(16),12,14-triene-7,4'-piperidine]-6-one using the IUPAC nomenclature.
user
C26H41N3O3
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