InChI=1/C20H19NO2/c22-20(23)15-10-11-17-16-8-4-5-9-18(16)21(19(17)12-15)13-14-6-2-1-3-7-14/h1-3,6-7,10-12H,4-5,8-9,13H2,(H,22,23)/p-1/fC20H18NO2/q-1 761678B63D224271