100909-95-3Relevant articles and documents
Total Synthesis of Catunaregin and Preliminary Evaluation of Its Antitumor Activity
Abe, Hideki,Hikichi, Takuma,Emori, Kosuke,Yokosuka, Akihito,Mimaki, Yoshihiro,Kobayashi, Toyoharu,Ito, Hisanaka
, p. 1655 - 1664 (2018)
The total synthesis of catunaregin in both racemic and optically active forms was accomplished. The enantioselective synthesis uses the Evans aldol strategy, with an oxazolidinone or thiazolidinethione as the chiral auxiliary. The key features include a syn-selective aldol reaction to form the Evans-syn or non-Evans-syn product, and a successive ketalization reaction of a furanyl diol derivative under acidic conditions. The biological properties of the synthetic racemate and both enantiomers were evaluated against A549 and HL-60 human cancer cells.
Synthesis of tri- and tetrasubstituted furans catalyzed by trifluoroacetic acid
Stauffer, Frederic,Neier, Reinhard
, p. 3535 - 3537 (2007/10/03)
(matrix presented) Substituted 2-hydroxy-3-acetylfurans are synthesized by alkylation of tert-butyl acetoacetate with an α-haloketone followed by treatment of the obtained intermediate with trifluoroacetic acid (TFA). A second alkylation of the intermedia