InChI=1S/C21H27NO5/c1-14-8-10-17(11-9-14)19-22-18(15(2)27-19)7-5-4-6-16-12-25-21(3,20(23)24)26-13-16/h8-11,16H,4-7,12-13H2,1-3H3,(H,23,24)