5-[[4-(hydroxymethyl)phenoxy]methyl]-3-propan-2-yl-1,3-oxazolidin-2-one; 5-[[4-(Hydroxymethyl)phenoxy]methyl]-3-isopropyl-1,3-oxazolidin-2-one; 5-((4-(Hydroxymethyl)phenoxy)methyl)-3-isopropyloxazolidin-2-one