InChI=1S/C17H17F2N2O7P/c18-17(19,29(26,27)28)12-4-3-9-7-11(2-1-10(9)8-12)16(25)21-13(15(20)24)5-6-14(22)23/h1-4,7-8,13H,5-6H2,(H2,20,24)(H,21,25)(H,22,23)(H2,26,27,28)/t13-/m0/s1