InChI=1S/C22H36O6/c1-4-5-6-7-8-9-10-11-12-13-14-19(25)22(26)20(27-17(2)23)15-16-21(22)28-18(3)24/h15-16,20-21,26H,4-14H2,1-3H3/t20-,21+,22-