InChI=1/C20H21N3O4S/c21-28(25,26)19-10-8-17(9-11-19)22-20(24)15-23(14-18-7-4-12-27-18)13-16-5-2-1-3-6-16/h1-12H,13-15H2,(H,22,24)(H2,21,25,26)/p+1/fC20H22N3O4S/h22-23H,21H2/q+1 4D0BEFE404176D60