InChI=1/C12H14N2O3/c1-7-3-8(2)5-9(4-7)13-11(15)10-6-17-12(16)14-10/h3-5,10H,6H2,1-2H3,(H,13,15)(H,14,16)/t10-/m1/s1/f/h13-14H DDC2F3DF800C3C19