11-oxo-undeca-5,8-cis,cis-dienoic acid methyl ester

11-(4-Methyl-2,6,7-trioxa-bicyclo[2.2.2]oct-1-yl)-undeca-4,7-diyne-1,2-diol

(4Z,7Z)-11-(4-Methyl-2,6,7-trioxa-bicyclo[2.2.2]oct-1-yl)-undeca-4,7-diene-1,2-diol

(5Z,8Z,12Z,14Z)-11-Methanesulfonyloxy-icosa-5,8,12,14-tetraenoic acid methyl ester