InChI=1S/C21H31NO8/c1-22(2)11-13-6-3-4-9-21(13,28)12-7-5-8-14(10-12)29-20-17(25)15(23)16(24)18(30-20)19(26)27/h5,7-8,10,13,15-18,20,23-25,28H,3-4,6,9,11H2,1-2H3,(H,26,27)