InChI=1S/C20H22N2O2S/c1-16-8-10-19(11-9-16)25(23,24)22-13-12-20(15-21,17(2)14-22)18-6-4-3-5-7-18/h3-11,17H,12-14H2,1-2H3/t17-,20-/m0/s1