InChI=1/C21H28N4O4S/c1-3-29-20(27)17-16(12-25-10-8-14(9-11-25)19(22)26)23-21(28)24-18(17)13-4-6-15(30-2)7-5-13/h4-7,14,18H,3,8-12H2,1-2H3,(H2,22,26)(H2,23,24,28)/t18-/m0/s1/f/h23-24H,22H2 DB90B44E97C296DC