InChI=1/C20H17NO/c1-3-7-18-16(5-1)11-17-6-2-4-8-19(17)20(18)13-21-12-15-9-10-22-14-15/h1-11,14,21H,12-13H2/p+1/fC20H18NO/h21H/q+1 F3A99BB8BA26CBDB