InChI=1S/C22H25FO4/c1-2-3-4-5-6-9-15-26-21(24)17-11-10-12-18(16-17)22(25)27-20-14-8-7-13-19(20)23/h7-8,10-14,16H,2-6,9,15H2,1H3