InChI=1S/C13H21N3O9S/c14-6(12(23)24)1-2-9(19)16-7(11(22)15-3-10(20)21)5-26-13(25)8(18)4-17/h4,6-7,13,17-18,25H,1-3,5,14H2,(H,15,22)(H,16,19)(H,20,21)(H,23,24)/b8-4-