2-[((2R,3R,4R,5S,6R)-4,5-Diacetoxy-6-acetoxymethyl-2-methoxy-tetrahydro-pyran-3-ylamino)-methylene]-malonic acid dimethyl ester

2-{[(2S,3R,4R,5R)-5-((S)-1,2-Dihydroxy-ethyl)-4-hydroxy-2-methoxy-tetrahydro-furan-3-ylamino]-methylene}-malonic acid dimethyl ester