InChI=1/C15H20N4O3S/c1-9(2)16-13(23)18-19-12(20)15(3,17-14(19)21)10-5-7-11(22-4)8-6-10/h5-9H,1-4H3,(H,17,21)(H2,16,18,23)/t15-/m1/s1/f/h16-18H 3CA8DF6902668702