InChI=1/C27H23NO2/c1-29-24-13-8-14-25-26(24)22-16-15-21(28-18-19-9-4-2-5-10-19)17-23(22)27(30-25)20-11-6-3-7-12-20/h2-17,27-28H,18H2,1H3/t27-/m1/s1 BEC2451D2C9823EA