InChI=1/C15H16N2O2/c1-9-6-11(9)8-16-15(19)13-7-10-4-2-3-5-12(10)14(18)17-13/h2-5,7,9,11H,6,8H2,1H3,(H,16,19)(H,17,18)/t9-,11-/m0/s1/f/h16-17H 3135A6AADD6DE3EF