InChI=1/C18H21NO2/c1-9-7-12(4)16-13(8-9)15(18(20)21)14-10(2)5-6-11(3)17(14)19-16/h5-6,9,12H,7-8H2,1-4H3,(H,20,21)/t9-,12+/m1/s1/f/h19H 44C6CEEF82BD6216