InChI=1S/C22H28O5/c1-6-7-14-11-17(24)27-22-15(9-8-12(2)3)20(25)19(21(26)18(14)22)16(23)10-13(4)5/h8,11,13,25-26H,6-7,9-10H2,1-5H3