InChI=1/C19H20N2O3/c1-14(17-3-2-4-18(13-17)21(23)24)20-11-9-16(10-12-20)15-5-7-19(22)8-6-15/h2-9,13-14,22H,10-12H2,1H3/t14-/m1/s1 A8C1DA4BCEACF8D2