InChI=1S/C20H21F2N3O/c21-16-9-15(10-17(22)11-16)20(26)24-19-14-3-6-25(7-4-14)18(19)8-13-2-1-5-23-12-13/h1-2,5,9-12,14,18-19H,3-4,6-8H2,(H,24,26)/t18-,19+/m0/s1