InChI=1/C21H16F2NO4S/c1-29(25,26)24-14-10-11-15-16(12-14)20(13-6-3-2-4-7-13)27-17-8-5-9-18(19(15)17)28-21(22)23/h2-12,20-21H,1H3/q-1/t20-/m1/s1 5F162C9CCF54BEC9