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system
Name the molecular formula for the molecule established as (8S,11R,13S,14S,17S)-11-(4-acetylphenyl)-2',13-dimethyl-5'-methylidenespiro[1,2,6,7,8,11,12,14,15,16-decahydrocyclopenta[a]phenanthrene-17,4'-1,3-oxazole]-3-one using the IUPAC nomenclature.
user
C30H33NO3
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