Synthesis of Fmoc-protected 4-carboxydifluoromethyl-L-phenylalanine: A phosphotyrosyl mimetic of potential use for signal transduction studies
摘要:
4-(Carboxymethyl)phenylalanine (2) and its alpha,alpha-difluoro homologue 4-(carboxydifluoromethyl)-phenylalanine (3) have been described as phosphotyrosyl mimetics. Herein we report the synthesis of N-Fmoc 4-(0-tert-butyl carboxymethyl)-phenylalanine (4) and N-Fmoc 4-(0-tert-butyl carboxydifluoromethyl)phenylalanine (5) in high enantiomeric purity. These analogues bear orthogonal protection suitable for the preparation of inhibitors directed against a variety of signal transduction pathways, including SH2 and PTP domains and protein-tyrosine phosphatases. Published by Elsevier Science Ltd.
Synthesis of Fmoc-protected 4-carboxydifluoromethyl-L-phenylalanine: A phosphotyrosyl mimetic of potential use for signal transduction studies
摘要:
4-(Carboxymethyl)phenylalanine (2) and its alpha,alpha-difluoro homologue 4-(carboxydifluoromethyl)-phenylalanine (3) have been described as phosphotyrosyl mimetics. Herein we report the synthesis of N-Fmoc 4-(0-tert-butyl carboxymethyl)-phenylalanine (4) and N-Fmoc 4-(0-tert-butyl carboxydifluoromethyl)phenylalanine (5) in high enantiomeric purity. These analogues bear orthogonal protection suitable for the preparation of inhibitors directed against a variety of signal transduction pathways, including SH2 and PTP domains and protein-tyrosine phosphatases. Published by Elsevier Science Ltd.