InChI=1/C17H17ClN2O2/c1-4-14-16(17(21)22-3)15(12(9-19)10(2)20-14)11-7-5-6-8-13(11)18/h5-8,15,20H,4H2,1-3H3/t15-/m0/s1 BEC17F34F13F2F17