2-Butenoic acid, 2-methyl-, (1S,2R,7aS)-1-((((2E)-3-(4-((6-deoxy-alpha-L-mannopyranosyl)oxy)phenyl)-1-oxo-2-propenyl)oxy)methyl)hexahydro-1H-pyrrolizin-2-yl ester, (2Z)- 70474-34-9