InChI=1S/C23H25NO4/c1-3-24(4-2)13-14-27-22(26)15-18-11-8-12-19-20(25)16-21(28-23(18)19)17-9-6-5-7-10-17/h5-12,16H,3-4,13-15H2,1-2H3