InChI=1/C14H15N3O4S2/c1-7-13(18)15-10-6-9(4-5-11(10)21-7)12-8(2)22-14(16-12)17-23(3,19)20/h4-7H,1-3H3,(H,15,18)(H,16,17)/t7-/m1/s1/f/h15-16H D50A55BE1CEBBCAE