InChI=1/C15H18N2O3/c1-11-7-8-14(20-11)10-16(3)9-13-5-4-6-15(12(13)2)17(18)19/h4-8H,9-10H2,1-3H3/p+1/fC15H19N2O3/h16H/q+1 9044DB3B5AEF636F