4-methoxy-benzoic acid 2-(3-acetoxy-2-trichloroacetimidoyloxy-5-triethylsilanyloxy-tetrahydro-pyran-4-yloxy)-ethyl ester

4-methoxy-benzoic acid 2-[3-acetoxy-2-(4-methoxy-benzyloxy)-5-triethylsilanyloxy-tetrahydro-pyran-4-yloxy]-ethyl ester

Acetic acid (3R,4R,5S)-2-(2,2,2-trichloro-acetimidoyloxy)-4,5-bis-triethylsilanyloxy-tetrahydro-pyran-3-yl ester