[(3S)-8-methoxy-3-(4-nitrobenzoyl)oxy-8-oxooctyl] 4-nitrobenzoate

(3S)-6-bromohexane-1,3-diol

(3S)-methyl 6-bromo-3-hydroxy hexanoate

(S)-(tetrahydro-furan-2-yl)-acetic acid methyl ester

6-oxohexanoic acid isopropyl ester