InChI=1S/C16H25N3O9S/c1-8(20)11(3-5-13(22)23)29-7-10(15(26)18-6-14(24)25)19-12(21)4-2-9(17)16(27)28/h3,5,8-11,20H,2,4,6-7,17H2,1H3,(H,18,26)(H,19,21)(H,22,23)(H,24,25)(H,27,28)/b5-3-