InChI=1/C15H19FN2O2S/c1-9(10-7-5-6-8-11(10)16)17-13-18-12(19)15(4,21-13)14(2,3)20/h5-9,20H,1-4H3,(H,17,18,19)/t9-,15-/m0/s1/f/h17H CDCE5FA895E22C80