InChI=1/C18H21NO2/c1-2-9-19-12-15(13-3-6-16(20)7-4-13)10-14-5-8-17(21)11-18(14)19/h3-8,11,15,20-21H,2,9-10,12H2,1H3/p+1/t15-/m1/s1/fC18H22NO2/h19H/q+1 17A1BC0B85B70310