Oxacyclohexadeca-​3,​5,​11,​13-​tetraen-​2-​one, 16-​[(1S,​2R,​3S)​-​3-​[(2R,​4R,​5S,​6R)​-​4-​[(6-​deoxy-​2-​O-​methyl-​α-​L-​mannopyranosyl)​oxy]​tetrahydro-​2-​hydroxy-​5-​methyl-​6-​(1-​methylethyl)​-​2H-​pyran-​2-​yl]​-​2-​hydroxy-​1-​methylbutyl]​-​