(1R,2R)-2-((Z)-(S)-9-Oxo-2,3,6,7,8,9-hexahydro-oxonin-2-yl)-cyclopropanecarboxylic acid

(Z)-(S)-8-(4-Methoxy-benzyloxy)-9-oxo-non-5-enoic acid methyl ester

(2E,6Z)-(S)-4-(4-Methoxy-benzyloxy)-undeca-2,6-dienedioic acid 1-tert-butyl ester 11-methyl ester

(1R,2R)-2-((Z)-(S)-9-Oxo-2,3,6,7,8,9-hexahydro-oxonin-2-yl)-cyclopropanecarboxylic acid tert-butyl ester

(1R,2R)-2-((Z)-(S)-7-Carboxy-1-hydroxy-hept-3-enyl)-cyclopropanecarboxylic acid tert-butyl ester