InChI=1S/C23H28O7/c1-6-9-23(12-17(26-4)7-8-20(23)25)14(2)21(30-15(3)24)16-10-18(27-5)22-19(11-16)28-13-29-22/h6-8,10-11,14,17,21H,1,9,12-13H2,2-5H3/t14-,17+,21-,23-/m0/s1