(2R,3S)-2-ethyl-3-<(1R,2S,3S,4R,5E)-3-hydroxy-1-(4-methoxybenzyloxy)-2,4-dimethyl-5-heptenyl>-3-methyl-1,4-dioxaspiro<4.4>nonane

(2R,3S,4R)-3,5-(Isopropylidenedioxy)-2,4-dimethylpentanal

(4R)-4-benzyl-3-[(2R)-2-[(2R,4S,5S,6R)-6-[(1S)-1-benzyloxy-1-methyl-2-oxobutyl]-2-(p-methoxyphenyl)-5-methyl-1,3-dioxan-4-yl]propionyl]-2-oxazolidinone

3,5-O-(3,4-Dimethoxybenzylidene)-13-O-(4-methoxybenzyl)-9,11-O-(2,4,6-trimethylbenzylidene)-(9S)-9-dihydroerythronolide A seco-acid methylester

(2R,3R)-3-ethyl-2-methyl-1,4-dioxaspiro<4.4>nonane-2-carbaldehyde