InChI=1/C12H16N2O3/c1-7(6-13)11(15)14-10-5-3-4-9(8(10)2)12(16)17/h3-5,7H,6,13H2,1-2H3,(H,14,15)(H,16,17)/t7-/m1/s1/f/h13-14H 0F9B6EF46D8A7FD4