InChI=1/C18H23NO2/c1-5-19(11-16-7-6-8-21-16)12-17(20)18-14(3)9-13(2)10-15(18)4/h6-10H,5,11-12H2,1-4H3/p+1/fC18H24NO2/h19H/q+1 3944FCF2A79E2386