InChI=1S/C19H21N3O6S/c1-20-18(23)17-10-14-7-8-16(21-29(25,26)27)9-15(14)11-22(17)19(24)28-12-13-5-3-2-4-6-13/h2-9,17,21H,10-12H2,1H3,(H,20,23)(H,25,26,27)/t17-/m0/s1