InChI=1S/C21H25N4O6P/c1-15(31-32(29,23-9-10-23)24-11-12-24)16-7-8-19(25(27)28)20(14-16)30-18-6-4-5-17(13-18)21(26)22(2)3/h4-8,13-15H,9-12H2,1-3H3/t15-/m1/s1