InChI=1/C20H23N3O3/c1-12-6-8-15(9-7-12)23-13(2)10-16(14(23)3)17(24)11-22-18(25)20(4,5)21-19(22)26/h6-10H,11H2,1-5H3,(H,21,26)/f/h21H 2876C72C4A2C5023