InChI=1/C15H16F2N2OS/c1-8(2)21-15-18-13(9(3)14(20)19-15)7-10-11(16)5-4-6-12(10)17/h4-6,8H,7H2,1-3H3,(H,18,19,20)/f/h18H 16BF8DD36A034CE4