InChI=1/C18H23N3O3/c1-11-8-12(2)10-14(9-11)21(3)15(22)13-4-6-18(7-5-13)16(23)19-17(24)20-18/h8-10,13H,4-7H2,1-3H3,(H2,19,20,23,24)/f/h19-20H 87BA6E764AB4966A