InChI=1S/C22H34O7/c1-5-6-7-8-14-9-15-11(2)17(23)12(3)21(16(15)10-27-14)29-22-20(26)19(25)18(24)13(4)28-22/h13-14,18-20,22-26H,5-10H2,1-4H3