InChI=1S/C22H30O7/c1-10-12-8-13(29-11(2)23)14-20-7-5-6-19(3,4)15(20)18(26)22(27,28-9-20)21(14,16(10)24)17(12)25/h12-15,17-18,25-27H,1,5-9H2,2-4H3