InChI=1/C20H20N2OS/c1-15(19-9-5-6-12-21-19)22(2)20(23)14-24-18-11-10-16-7-3-4-8-17(16)13-18/h3-13,15H,14H2,1-2H3/t15-/m1/s1 FBF241D817D43EA6