A new approach to steroid dimers and macrocycles by the reaction of 3-chlorocarbonyl derivatives of bile acids with O,O-, N,N-, and S,S-dinucleophiles

作者: Zdzisław Paryzek , Roman Joachimiak , Monika Piasecka , Tomasz Pospieszny

DOI: 10.1016/J.TETLET.2012.08.151

关键词: Bile acidStereochemistryChemistryLinkerSteroid

摘要: Abstract The reaction of 3-chlorocarbonyl derivatives bile acid esters with O,O-, N,N-, and S,S-dinucleophiles provides a general efficient entry into steroid dimers bis-carbamate, bis-carbonate, bis-monothiocarbonate moieties in the linker fragment. macrocyclization bis-carbamate 10 afforded dimeric tetrameric cholaphanes, 15 16, respectively.

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