InChI=1/C18H17N3O4S/c22-18(20-9-10-26(23,24)16-7-2-1-3-8-16)21-15-6-4-5-14(11-15)17-12-19-13-25-17/h1-8,11-13H,9-10H2,(H2,20,21,22)/f/h20-21H 056BB1B34D3D38B5