InChI=1/C18H21N3O3/c1-12-14-5-4-8-20(14)9-10-21(12)17(22)19-13-6-7-15-16(11-13)24-18(2,3)23-15/h4-8,11-12H,9-10H2,1-3H3,(H,19,22)/t12-/m1/s1/f/h19H 9BC39B2536450412