(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

(R)-4-(2-bromo-5-methoxycarbonylphenyl)-2-(3,4-dimethylpent-3-enyl)-2-methoxymethyl-3-oxopentanedioic acid 5-methyl ester 1-(2-trimethylsilylethyl) ester