InChI=1S/C20H22FN3O2/c21-17-8-4-3-6-14(17)9-16(22)11-19(25)24-12-15-7-2-1-5-13(15)10-18(24)20(23)26/h1-8,16,18H,9-12,22H2,(H2,23,26)/t16-,18+/m1/s1