InChI=1/C15H16N2O3/c1-16-6-8-17(9-7-16)14(18)13-10-11-4-2-3-5-12(11)15(19)20-13/h2-5,10H,6-9H2,1H3/p+1/fC15H17N2O3/h16H/q+1 29F15B664CA34E2B