InChI=1/C20H31NO2/c1-7-8-9-10-21-18(22)14-11-15(19(2,3)4)17-16(12-14)20(5,6)13-23-17/h11-12H,7-10,13H2,1-6H3,(H,21,22)/f/h21H 41CA251F11FD3790