InChI=1/C21H33N3O3/c1-21(2,3)27-20(26)23-13-7-5-4-6-8-19(25)24(18-9-10-18)16-17-11-14-22-15-12-17/h11-12,14-15,18H,4-10,13,16H2,1-3H3,(H,23,26)/f/h23H 1E8B9CA1ECEE2934