InChI=1/C21H19NO2/c23-20-7-5-16(13-21(20)24)15-4-6-19-17(12-15)2-1-3-18(19)14-8-10-22-11-9-14/h4-13,18,23-24H,1-3H2/t18-/m0/s1 D2460EB78E8CAC79