InChI=1S/C21H30N2O4S2/c1-16(2)29(26,27)23-15-17(3)19-9-11-21(12-10-19)20-7-5-18(6-8-20)13-14-22-28(4,24)25/h5-12,16-17,22-23H,13-15H2,1-4H3/t17-/m0/s1