4-bromo-3-[(2S,3S)-2-hydroxy-3-methoxycarbonyl-3-methoxymethyl-6,7-dimethyloct-6-enyl]benzoic acid methyl ester

(S)-4-(2-bromo-5-methoxycarbonyl)-2-(3,4-dimethylpent-3-enyl)-2-methoxymethyl-3-oxopentanedioic acid dimethyl ester