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system
Name the molecular formula for the molecule established as (8'aR,11R,13S,15S)-11-hydroxy-5,5-dimethyl-15-(2-methylbut-3-en-2-yl)spiro[4,14-dioxa-16-azatetracyclo[8.6.0.03,8.011,15]hexadeca-1(10),2,6,8-tetraene-13,3'-6,7,8,8a-tetrahydro-2H-pyrrolo[1,2-a]pyrazine]-1',4'-dione using the IUPAC nomenclature.
user
C26H31N3O5
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