3-[(2R,3R)-2-acetoxy-3-formylamino-3-methoxymethyl-6,7-dimethyloct-6-enyl]-4-bromobenzoic acid methyl ester

3-((2S,3S)-2-Acetoxy-3-carboxy-3-methoxymethyl-6,7-dimethyl-oct-6-enyl)-4-bromo-benzoic acid methyl ester

(R)-4-bromo-3-[3-methoxymethyl-6,7-dimethyl-2-oxo-3-(2-trimethylsilylethoxycarbonyl)oct-6-enyl]benzoic acid methyl ester

4-bromo-3-[(2R,3R)-2-hydroxy-3-methoxymethyl-6,7-dimethyl-3-(2-trimethylsilylethoxycarbonyl)oct-6-enyl]benzoic acid methyl ester

4-bromo-3-[(2S,3R)-2-hydroxy-3-methoxymethyl-6,7-dimethyl-3-(2-trimethylsilylethoxycarbonyl)oct-6-enyl]benzoic acid methyl ester