InChI=1/C18H19N3O3/c1-11-9-15(20-24-11)16-3-2-8-21(16)18(23)13-4-6-14-12(10-13)5-7-17(22)19-14/h4,6,9-10,16H,2-3,5,7-8H2,1H3,(H,19,22)/t16-/m0/s1/f/h19H 5BF38AD8BC2668BF