ethyl (4S,5R,6S)-7-(4-methoxybenzyloxy)-5-(tert-butyldimethylsilyloxy)-4,6-dimethylheptanoate

{3(R)-[2(S)-(4-methoxyphenyl)-5(S)-methyl[1,3]dioxan-4(S)-yl]-2-oxobutyl}phosphonic acid dimethyl ester