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(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
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(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
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Epothilone I1
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(14Z,18E)-(3S,6R,7S,8S,17S)-3,7-Bis-(tert-butyl-dimethyl-silanyloxy)-17-hydroxy-4,4,6,8,18-pentamethyl-19-(2-methyl-thiazol-4-yl)-5-oxo-nonadeca-14,18-dienoic acid
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(14Z,18E)-(3S,6R,7S,8S,17S)-3,7,17-Tris-(tert-butyl-dimethyl-silanyloxy)-1-hydroxy-4,4,6,8,18-pentamethyl-19-(2-methyl-thiazol-4-yl)-nonadeca-14,18-dien-5-one