InChI=1S/C18H23NO2/c1-18(12-20-2)9-5-10-19-11-8-14-13-6-3-4-7-15(13)21-16(14)17(18)19/h3-4,6-7,17H,5,8-12H2,1-2H3/t17-,18-/m1/s1