Showing structure for [(2r,5r)-3,5-dihydroxy-6-methyl-4-oxooxan-2-yl]oxy([hydroxy([(2r,3s,5r)-3-hydroxy-5-(4-hydroxy-5-methyl-2-oxopyrimidin-1-yl)oxolan-2-yl]methoxy)phosphoryl]oxy)phosphinic acid