N(alpha)-(9-fluorenylmethoxycarbonyl)-O-(3,4,6-tri-O-acetyl-2-azido-2-deoxygalactopyranosyl)serine pentafluorphenyl ester
n(alpha)-(9-fluorenylmethoxycarbonyl)-o-(3,4,6-tri-o-acetyl-2-azido-2-deoxygalactopyranosyl)serine pentafluorphenyl ester