InChI=1/C18H17NO/c20-18(16-9-5-2-6-10-16)17(14-19-11-12-19)13-15-7-3-1-4-8-15/h1-10,13H,11-12,14H2/p+1/b17-13-/fC18H18NO/h19H/q+1 5BFE3639ED06E77E