InChI=1S/C22H28O8/c1-4-5-6-7-16(23)19(26)12(2)11-29-22(28)13(3)30-21-15-10-18(25)20(27)14(15)8-9-17(21)24/h8-9,15,17,19,21,24,26-27H,2-7,10-11H2,1H3/t15-,17-,19?,21-/m1/s1