205641-95-8Relevant academic research and scientific papers
Synthesis of conformationally restrained, β-substituted derivatives of l-tryptophan via lewis acid-catalyzed reaction of 2,3-aziridino-β-d-lyxo-furanosides with 1-(trialkylsilyl)indoles
Hofmann, Bernhard,Dauban, Philippe,Biron, Jean-Philippe,Potier, Pierre,Dodd, Robert H.
, p. 473 - 487 (2007/10/03)
Reaction of 1-(triisopropylsilyl)indole (or its 5-benzyloxy derivative) with tert-butyldimethylsilyl N-(tert-butyloxycarbonyl)-2,3-aziridino-2,3-dideoxy5-O-methyl- (or benzyl-)-β-D-lyxofuranoside in the presence of boron trifluoride etherate gave, regio- and stereospecifically, the corresponding protected 2-amino-3-(3-indolyl)arabinofuranoside derivatives. These could be transformed, after desilylation, oxidation and removal of the Boc group, into 2-amino-3-(3-indolyl)arabinonolactone derivatives. The latter represent novel examples of conformationally restrained analogues of L-tryptophan as well as precursors of optically pure β-substituted L-tryptophans.
