(9R,10E,12R,13S,15Z)-13-t-butyldiphenylsilyloxy-12-hydroxyoctadeca-10,15-dien-9-olide

(9R,10E,12R,13S,15Z)-12-t-butyldimethylsilyloxy-13-p-methoxybenzyloxyoctadeca-10,15-dien-9-olide

(9R,10E,12R,13S,15Z)-12-t-butyldimethylsilyloxy-13-hydroxyoctadeca-10,15-dien-9-olide

(9R,10E,12R,13S,15Z)-12-t-butyldimethylsilyloxy-13-methanesulfonyloxyoctadeca-10,15-dien-9-olide

Methanesulfonic acid (Z)-(1R,2S)-2-(tert-butyl-diphenyl-silanyloxy)-1-[(E)-2-((R)-10-oxo-oxecan-2-yl)-vinyl]-hept-4-enyl ester