InChI=1S/C19H27NO3/c1-2-3-11-17(15-21)20-18(22)23-19(12-7-8-13-19)14-16-9-5-4-6-10-16/h4-6,9-10,15,17H,2-3,7-8,11-14H2,1H3,(H,20,22)/t17-/m0/s1