Butyric acid (R)-1-butyryloxymethyl-2-(diisopropylamino-methoxy-phosphanyloxy)-ethyl ester

Butyric acid (R)-1-butyryloxymethyl-2-{[(1S,2R,3R,4S,5S,6R)-3-(fluoromethyl-methoxy-phosphinoyloxy)-2,4,5,6-tetrakis-methoxymethoxy-cyclohexyloxy]-methoxy-phosphoryloxy}-ethyl ester

Butyric acid (R)-1-butyryloxymethyl-2-{methoxy-[(1S,2R,3S,4S,5R,6R)-2,3,4,6-tetrakis-methoxymethoxy-5-(methoxy-methyl-phosphinoyloxy)-cyclohexyloxy]-phosphoryloxy}-ethyl ester