InChI=1/C15H20N4O4S/c1-8(2)9-5-11(22-3)13(24(4,20)21)6-10(9)23-12-7-18-15(17)19-14(12)16/h5-8H,1-4H3,(H4,16,17,18,19)/f/h16-17H2 8E9B675972EBE34A