InChI=1/C20H25NO3/c1-3-4-5-6-7-16-8-13-20(19(23)14-16)24-18-11-9-17(10-12-18)21-15(2)22/h8-14,23H,3-7H2,1-2H3,(H,21,22)/f/h21H 042A38A09BFDF172