InChI=1/C27H27NO4/c1-18-7-5-6-8-21(18)17-28(2)16-19-9-11-20(12-10-19)23-13-22-14-25(30-3)26(31-4)15-24(22)32-27(23)29/h5-15H,16-17H2,1-4H3 CB8B3641D28747F2