InChI=1S/C21H31NO8/c1-22-11-14(21(28)9-3-2-4-10-21)12-5-7-13(8-6-12)29-20-17(25)15(23)16(24)18(30-20)19(26)27/h5-8,14-18,20,22-25,28H,2-4,9-11H2,1H3,(H,26,27)/t14?,15-,16-,17+,18-,20+/m0/s1