InChI=1/C16H21N3O3/c1-4-19(5-2)12-6-7-14(15(20)9-12)16(21)17-10-13-8-11(3)18-22-13/h6-9,20H,4-5,10H2,1-3H3,(H,17,21)/f/h17H 8DC99C7F45F2FD2E