208518-52-9Relevant academic research and scientific papers
Insights into long-range structural effects on the stereochemistry of aldol condensations: A practical total synthesis of desoxyepothilone F
Chul Bom Lee,Wu,Zhang,Chappell,Stachel,Chou,Guan,Danishefsky
, p. 5249 - 5259 (2007/10/03)
A processable total synthesis of a potent antitumor agent, desoxyepothilone F (dEpoF, 21-hydroxy-12,13-desoxyepothilone B, 21-hydroxyepothilone D), has been accomplished. The route is highly convergent. The new technology has also been applied to a total
Catalytic antibody route to the naturally occurring epothilones: Total synthesis of epothilones A-F
Sinha, Subhash C.
, p. 1691 - 1702 (2007/10/03)
Naturally occurring epothilones have been synthesized starting from enantiomerically pure aldol compounds 9-11, which were obtained by antibody catalysis. Aldolase antibody 38C2 catalyzed the resolution of (±)-9 by enantioselective retro-aldol reaction to afford 9 in 90% ee at 50% conversion. Compounds 10 and 11 were obtained in more than 99% ee at 50% conversion by resolution of their racemic mixtures using newly developed aldolase antibodies 84G3, 85H6 or 93F3. Compounds 9, 10 and 11 were resolved in multigram quantities and then converted to the epothilones by metathesis processes, which were catalyzed by Grubbs' catalysts.
Total synthesis of 16-desmethylepothilone B, epothilone B10, epothilone F, and related side chain modified epothilone B analogues
Nicolaou,Hepworth, David,King, N. Paul,Raymond,Finlay,Scarpelli, Rita,Manuela,Pereira,Bollbuck, Birgit,Bigot, Antony,Werschkun, Barbara,Winssinger, Nicolas
, p. 2783 - 2800 (2007/10/03)
The macrolactonization-based strategy for the total synthesis of epothilones has been streamlined and improved to a high level of efficiency and stereoselectivity. This strategy has been applied to the construction of vinyl iodide 19 which served as a com
N-oxidation of epothilone A-C and O-acyl rearrangement to C-19- and C- 21-substituted epothilones
H?fle, Gerhard,Glaser, Nicole,Kiffe, Michael,Hecht, Hans-Jürgen,Sasse, Florenz,Reichenbach, Hans
, p. 1971 - 1974 (2007/10/03)
A bothersome side reaction in the last step of a total synthesis of epothilone led to the formation of the thiazol-N-oxide 1. Obtained from epothilones prepared by fermentation, these biologically active N-oxides allow the extremely short synthesis of the
