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system
Name the molecular formula for the molecule established as tert-butyl N-[[(2R,3aR,4R,8aR)-4-hydroxy-1-(1H-imidazole-5-carbonyl)-3a-methyl-2,3,4,5,6,7,8,8a-octahydrocyclohepta[b]pyrrol-2-yl]methyl]carbamate using the IUPAC nomenclature.
user
C20H32N4O4
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