Heterocyclic compounds containing both a five-membered ring and an oxygen atom adjacent to a nitrogen atom.
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C9H6Cl3NO2
(4S)-4-phenyl-3-[(2R)-2-phenylpropionyl]oxazolidin-2-one
1-(4-nitrophenyl)-5-(trifluoromethyl)-1H-pyrazole
tert-butyl benzyl(1-hydroxypentan-2-yl)carbamate
