(S)-2-[(9Z,12Z,15Z)-(R)-17-(tert-Butyl-dimethyl-silanyloxy)-octadeca-9,12,15-trienoylamino]-4-carbamoyl-butyric acid

(9Z,12Z,15Z,17R)-17-[(tert-butyldimethylsilyl)oxy]-9,12,15-octadecatrienoic acid

(9Z,12Z,15Z,17S)-17-[(tert-butyldimethylsilyl)oxy]-9,12,15-octadecatrienoic acid

(17R)-hydroxyoctadeca-9(Z),12(Z),15(Z)-trienoic acid methyl ester

methyl (9Z,12Z,15Z,17R)-17-[(tert-butyldimethylsilyl)oxy]-9,12,15-octadecatrienoate