(Z)-(4S,7R,8S,9S,18S)-4,8-Bis-(tert-butyl-dimethyl-silanyloxy)-5,5,7,9-tetramethyl-18-[(E)-1-methyl-2-(2-methyl-thiazol-4-yl)-vinyl]-oxacyclooctadec-15-ene-2,6-dione

(14Z,18E)-(3S,6R,7S,8S,17S)-1,3,7,17-Tetrakis-(tert-butyl-dimethyl-silanyloxy)-4,4,6,8,18-pentamethyl-19-(2-methyl-thiazol-4-yl)-nonadeca-14,18-dien-5-one

(8Z,12E)-(2S,11S)-11-(tert-Butyl-dimethyl-silanyloxy)-2,12-dimethyl-13-(2-methyl-thiazol-4-yl)-trideca-8,12-dienal

(8Z,12E)-(2S,11S)-11-(tert-Butyl-dimethyl-silanyloxy)-2,12-dimethyl-13-(2-methyl-thiazol-4-yl)-trideca-8,12-dienenitrile

Epothilone I1