(S)-1-[(Z)-(4R,7S,9S)-7-(tert-Butyl-dimethyl-silanyloxy)-3-hydroxy-9-methoxy-4,10-dimethyl-13-trimethylsilanyl-tridec-10-en-12-ynoyl]-piperidine-2-carboxylic acid methyl ester

(S)-1-[(Z)-(4R,7S,9S)-7-(tert-Butyl-dimethyl-silanyloxy)-9-methoxy-4,10-dimethyl-2,3-dioxo-13-trimethylsilanyl-tridec-10-en-12-ynoyl]-piperidine-2-carboxylic acid methyl ester