InChI=1/C21H26N2O2S/c1-15(13-16-14-22-20-8-6-5-7-19(16)20)23-26(24,25)18-11-9-17(10-12-18)21(2,3)4/h5-12,14-15,22-23H,13H2,1-4H3/t15-/m0/s1 D472159B1550CC98