InChI=1S/C21H25N2O8P/c1-15(23-21(27)30-13-17-10-6-3-7-11-17)19(24)22-14-32(28,29)31-18(20(25)26)12-16-8-4-2-5-9-16/h2-11,15,18H,12-14H2,1H3,(H,22,24)(H,23,27)(H,25,26)(H,28,29)/t15-,18-/m0/s1