3-Pyridinecarboxylic acid, 5-(1,3,2-dioxaphosphorinan-2-yl)-1,4-dihydro-2,6-dimethyl-4-(2-nitrophenyl)-, methyl ester, P-oxide
3-pyridinecarboxylic acid, 5-(1,3,2-dioxaphosphorinan-2-yl)-1,4-dihydro-2,6-dimethyl-4-(2-nitrophenyl)-, methyl ester, p-oxide