[(R)-5-[(4S,5S,6R)-6-(2-Benzyloxy-ethyl)-5-methoxy-2,2-dimethyl-[1,3]dioxan-4-yl]-7-(tert-butyl-diphenyl-silanyloxy)-2-hydroxy-3-methyl-heptyl]-phosphonic acid dimethyl ester

[(R)-5-[(4S,5S,6R)-6-(2-Benzyloxy-ethyl)-5-methoxy-2,2-dimethyl-[1,3]dioxan-4-yl]-7-(tert-butyl-diphenyl-silanyloxy)-3-methyl-2-oxo-heptyl]-phosphonic acid dimethyl ester