InChI=1S/C19H28NO2/c1-14(2)20(3)16-9-10-17(20)13-18(12-16)22-19(21)11-15-7-5-4-6-8-15/h4-8,14,16-18H,9-13H2,1-3H3/q+1/t16-,17+,18+,20?