4-[(2-oxo-3-propan-2-yl-1,3-oxazolidin-5-yl)methoxy]benzaldehyde; 4-((3-Isopropyl-2-oxooxazolidin-5-yl)methoxy)benzaldehyde; 4-[(3-Isopropyl-2-oxo-1,3-oxazolidin-5-yl)methoxy]benzaldehyde; 4-[[3-(1-Methylethyl)-2-oxo-5-oxazolidinyl]methoxy]benzaldehyde