InChI=1/C21H18N2OS/c1-21(19(24)23-20-22-10-11-25-20)12-17-13-6-2-4-8-15(13)18(21)16-9-5-3-7-14(16)17/h2-11,17-18H,12H2,1H3,(H,22,23,24)/t17?,18?,21-/m1/s1/f/h23H C56DC1DDB054CA21