InChI=1S/C21H19ClFNO8/c1-8-2-3-13-9(4-8)5-14(25)24(13)15-11(22)6-10(7-12(15)23)31-21-18(28)16(26)17(27)19(32-21)20(29)30/h2-4,6-7,16-19,21,26-28H,5H2,1H3,(H,29,30)/t16-,17-,18+,19-,21?/m0/s1