InChI=1/C28H25NO4/c1-3-32-25(30)23-24(26(31)33-4-2)28(20-15-9-6-10-16-20)22-18-12-11-17-21(22)27(23,29-28)19-13-7-5-8-14-19/h5-18,29H,3-4H2,1-2H3/t27-,28+ CA7BFBA8808F78BF