187527-29-3Relevant articles and documents
Synthesis of the C1-C9 segment of epothilons
Claus, Eckhard,Pahl, Axel,Jones, Peter G.,Meyer, Hartmut M.,Kalesse, Markus
, p. 1359 - 1362 (1997)
The C1-C9 segment of epothilons was generated by an aldol reaction between chiral aldehyde 3 and ethyl ketone 4. Removal of the TBS protecting groups and debenzylation generated spiro ketal 13 which was analyzed by X-ray crystallography.
The formal total synthesis of epothilone A
Kalesse, Markus,Quitschalle, Monika,Claus, Eckhard,Gerlach, Kai,Pahl, Axel,Meyer, Hartmut H.
, p. 2817 - 2823 (2007/10/03)
The formal total synthesis of epothilone A is described. The key steps in the synthesis of the northern hemisphere are a Z-selective ten-membered ring-closing metathesis reaction (RCM) and the diastereoselective alkylation at C8. Aldehyde 3 is formed by introduction of the thiazole moiety by a Wittig reaction and subsequent functional group transformation. An efficient route to keto acid 5 is described.
Synthetic studies on bryostatins, antineoplastic metabolites: Convergent synthesis of the C1-C16 fragment shared by all of the bryostatin family
Ohmori, Ken,Suzuki, Takayuki,Miyazawa, Kazuyuki,Nishiyama, Shigeru,Yamamura, Shosuke
, p. 4981 - 4984 (2007/10/02)
The C1-C16 fragment of bryostatins could successfully be synthesized by tandem connection of the appropriate three fragments and effective introduction of the α,β-unsaturated esters at the C13 position.