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system
Provide the molecular formula for the IUPAC named substance [(3aR,4S,6aR,8S,9R,9aS,9bS)-3,6-dimethylidene-4-[(2R)-2-methyloxirane-2-carbonyl]oxy-2-oxospiro[3a,4,5,6a,7,8,9a,9b-octahydroazuleno[4,5-b]furan-9,2'-oxirane]-8-yl] (4S,5R)-2,4-diphenyl-4,5-dihydro-1,3-oxazole-5-carboxylate .
user
C35H33NO9
assistant