(E)-(3S,6R,7S,8S)-4,4,6,8-Tetramethyl-5-oxo-11-(4,4,5,5-tetramethyl-[1,3,2]dioxaborolan-2-yl)-7-(2,2,2-trichloro-ethoxycarbonyloxy)-3-triethylsilanyloxy-undec-10-enoic acid

Carbonic acid (11E,13Z)-(4S,7R,8S,9S,16S)-5,5,7,9,13-pentamethyl-16-[(E)-1-methyl-2-(2-methyl-thiazol-4-yl)-vinyl]-2,6-dioxo-4-triethylsilanyloxy-oxacyclohexadeca-11,13-dien-8-yl ester 2,2,2-trichloro-ethyl ester