(E)-(2S,3S)-3-(tert-Butoxy-diphenyl-silanyloxy)-2,4-dimethyl-5-(2-methyl-thiazol-4-yl)-pent-4-enal

(12Z,16E)-(3S,6R,7S,8S,14S,15S)-15-(tert-Butoxy-diphenyl-silanyloxy)-3,7-bis-(tert-butyl-dimethyl-silanyloxy)-1-hydroxy-4,4,6,8,12,14,16-heptamethyl-17-(2-methyl-thiazol-4-yl)-heptadeca-12,16-dien-5-one

(S)-4-Benzyl-3-[(6E,10E)-(2S,8S,9S)-9-(tert-butoxy-diphenyl-silanyloxy)-6-chloromethyl-2,8,10-trimethyl-11-(2-methyl-thiazol-4-yl)-undeca-6,10-dienoyl]-oxazolidin-2-one