308357-92-8

Upstream product

• 308357-91-7 (3S,6R,7S,8S,12Z,15S,16E)-3,7-bis{[tert-butyl(dimethyl)silyl]oxy}-1-hydroxy-15-[(4-methoxybenzyl)oxy]-4,4,6,8,12,16-hexamethyl-17-(2-methyl-1,3-thiazol-4-yl)heptadeca-12,16-dien-5-one 
• 39238-07-8 4-(chloromethyl)-2-methyl-1,3-thiazole 
• 187527-25-9 (-)-(5S)-5,7-bis{[tert-butyl(dimethyl)silyl]oxy}-4,4-dimethylheptan-3-one 
• 308357-84-8 (-)-(3S)-3-[(4-methoxybenzyl)oxy]dihydrofuran-2(3H)-one 
• 255398-79-9 (-)-(5S)-5,7-bis(tert-butyldimethylsilyloxy)-4,4-dimethylheptan-3-ol 
• 198768-49-9 (-)-1-[(2S,4S)-2-(4-methoxyphenyl)-1,3-dioxan-4-yl]ethanone 
• 198768-47-7 (-)-methyl 1-{(2S,4S)-2-(4-methoxyphenyl)-1,3-dioxan-4-yl}-4-carboxylate 
• 1027920-39-3 (3S,4E)-3-[(4-methoxybenzyl)oxy]-4-methyl-5-(2-methyl-1,3-thiazol-4-yl)pent-4-en-1-al 
• 198768-54-6 (3S,4E)-3-[(4-methoxybenzyl)oxy]-4-methyl-5-(2-methyl-1,3-thiazol-4-yl)pent-4-en-1-ol 
• 198768-55-7 (-)-(2Z,5S,6E)-5-[(4-methoxybenzyl)oxy]-2,6-dimethyl-7-(2-methyl-1,3-thiazol-4-yl)hepta-2,6-dien-1-ol 
• 198768-51-3 4-{(1E)-2-[(2S,4S)-2-(4-methoxyphenyl)-1,3-dioxan-4-yl]prop-1-enyl}-2-methyl-1,3-thiazole 
• 198768-52-4 ethyl (2Z,5S,6E)-5-[(4-methoxybenzyl)oxy]-2,6-dimethyl-7-(2-methyl-1,3-thiazol-4-yl)hepta-2,6-dienoate 
• 218614-14-3 (4S)-4,6-bis{[tert-butyl(dimethyl)silyl]oxy}-3,3-dimethylhexan-2-one 
• 218614-13-2 (-)-methyl (3S)-3,5-bis{[tert-butyl(dimethyl)silyl]oxy}-2,2-dimethylpentanoate 

Downstream Products

• 308357-93-9 (3S,6R,7S,8S,12Z,15S,16E)-3,7-bis{[tert-butyl(dimethyl)silyl]oxy}-15-[(4-methoxybenzyl)oxy]-4,4,6,8,12,16-hexamethyl-17-(2-methyl-1,3-thiazol-4-yl)-5-oxoheptadeca-12,16-dienoic acid 

Relevant academic research and scientific papers

Total Syntheses of Epothilones B and D

Total syntheses of the microtubule stabilizing antitumor drugs epothilone B and D are described, starting from optically pure (S)-malic acid and methyl (R)-3-hydroxy-2-methylpropionate. The synthesis is highly convergent by coupling the three fragments C1-C6 (fragment D), C7-C10 (fragment C), and C11-C21 (fragment B). Key steps are two stereoselective Wittig type olefinations to generate the 12,13- and 16,17-double bonds, an enantioselective Mukaiyama aldol addition to synthesize fragment D, and a sulfone anion allyl iodide alkylation to connect fragments B and C. Finally fragment D was attached to the B + C fragment via aldol addition.