InChI=1/C21H31NO11S/c1-6-9-29-21(27)22-17-19(32-14(4)25)18(31-13(3)24)15(11-30-12(2)23)33-20(17)34-10-7-8-16(26)28-5/h6,15,17-20H,1,7-11H2,2-5H3,(H,22,27 butanoic acid, 4-[[3,4,6-tri-O-acetyl-2-deoxy-2-[[(2-propenyloxy)carbonyl]amino]hexopyranosyl]thio]-, methyl ester methyl 4-[(3,4,6-tri-O-acetyl-2-{[(allyloxy)carbonyl]amino}-2-deoxyhexopyranosyl)thio]butanoate