InChI=1/C25H24N2O2/c1-17(2)19-8-10-21(11-9-19)23-22(20-6-4-3-5-7-20)24(28)25(29)27(23)16-18-12-14-26-15-13-18/h3-15,17,23,28H,16H2,1-2H3/t23-/m0/s1 B332EF640D768EEB