(E)-(4R,5S,6R)-4,5,6-Tris-benzyloxy-7-oxo-hept-2-enoic acid methyl ester

(2E,7E)-(4R,5R,6S)-4,5,6-Tris-benzyloxy-9-hydroxy-nona-2,7-dienoic acid methyl ester

(2R,3R)-3-((1R,2S,3R)-1,2,3-Tris-benzyloxy-4-hydroxy-butyl)-oxirane-2-carboxylic acid methyl ester

(2R,3R)-3-((E)-(1R,2S,3R)-1,2,3-Tris-benzyloxy-5-methoxycarbonyl-pent-4-enyl)-oxirane-2-carboxylic acid

(2R,3R)-3-((E)-(1R,2S,3R)-1,2,3-Tris-benzyloxy-5-methoxycarbonyl-pent-4-enyl)-oxirane-2-carboxylic acid methyl ester