InChI=1S/C19H25NO4/c21-17(20-12-14-8-4-5-9-16(14)18(20)22)11-15(19(23)24)10-13-6-2-1-3-7-13/h1-3,6-7,14-16,18,22H,4-5,8-12H2,(H,23,24)