InChI=1/C21H21FN2O4/c1-13-8-20(26)28-19-10-17(6-7-18(13)19)24-21(27)23-11-15(12-25)9-14-2-4-16(22)5-3-14/h2-8,10,15,25H,9,11-12H2,1H3,(H2,23,24,27)/t15-/m0/s1/f/h23-24H C1DD316A215798F3