InChI=1/C18H17NO2/c1-11-9-16-10-15(7-8-17(16)19-11)14-5-3-13(4-6-14)12(2)18(20)21/h3-10,12,19H,1-2H3,(H,20,21)/p-1/t12-/m0/s1/fC18H16NO2/q-1 55C5ECD79D73DCA0