[(2R,4S,5R)-4-hydroxy-5-(hydroxymethyl)oxolan-2-yl] phosphate
[(2R,4S,5R)-4-hydroxy-5-(hydroxymethyl)tetrahydrofuran-2-yl] phosphate
[(2R,4S,5R)-4-hydroxy-5-(hydroxymethyl)-2-tetrahydrofuranyl] phosphate
[(2R,4S,5R)-4-hydroxy-5-methylol-tetrahydrofuran-2-yl] phosphate