InChI=1/C14H16N2O3/c15-12(17)9-5-7-16(8-6-9)13-10-3-1-2-4-11(10)14(18)19-13/h1-4,9,13H,5-8H2,(H2,15,17)/t13-/m1/s1/f/h15H2 6E8015B4DC698BF1