for the following products
2-(3-Nitrophenyl)-6-methyl-1,3,6,2-dioxazaborocane-4,8-dione | 4-Methyl-8-(3-nitrocyclohexyl)-2,6-dioxohexahydro-[1,3,2]oxazaborolo[2,3-b][1,3,2]oxazaborol-4-ium-8-uide and 6-Methyl-2-(3-nitrophenyl)-1,3,6,2-dioxazaborocane-4,8-dione
