InChI=1/C14H16N2O3/c1-7-5-10(7)14(18)15-9-3-4-12-11(6-9)16-13(17)8(2)19-12/h3-4,6-8,10H,5H2,1-2H3,(H,15,18)(H,16,17)/t7-,8+,10-/m1/s1/f/h15-16H 503BB135B0377FAF