InChI=1S/C20H27N2O6PS/c1-14(2)19(22-30(27,28)17-9-4-3-5-10-17)29(25,26)13-18(20(23)24)16-8-6-7-15(11-16)12-21/h3-11,14,18-19,22H,12-13,21H2,1-2H3,(H,23,24)(H,25,26)/t18-,19+/m0/s1