InChI=1S/C22H28O7/c1-11-17(25)19-22(4)14(20(26)29-19)5-6-16(28-12(2)23)18(22)21(11,3)9-15(24)13-7-8-27-10-13/h5,7-8,10-11,15-19,24-25H,6,9H2,1-4H3/t11-,15+,16-,17-,18-,19+,21+,22-/m1/s1