Tetrahedron p. 10437 - 10446 (1999)
Update date:2022-08-15
Topics:
Kumar
Pillai, V. N. Rajasekharan
Peptide-N-alkylamides were synthesised on a new highly solvating copolymer of 4% tetraethyleneglycol diacrylate-cross-linked polystyrene (PS- TTEGDA) support. The polymer was synthesised by suspension polymerisation using a free radical initiator. The synthesis of C-terminal peptide-N- alkylamide involve prior incorporation of a photolabile linker, 3-nitro-4- bromo-methylbenzoic acid to the aminomethylated support. The N-alkylamino group act as an anchoring group for the peptide as well as a latent function for the C-terminal modification of the attached peptide. Irradiation of the peptide-resin with 350 nm light in TFE/DCM resulted in the release of peptide-N-alkylamides. Synthetic utility of the new support was demonstrated by the synthesis of Boc-amino acid-N-alkylamides and C-terminal peptide-N- alkyl amides in 75-80% yields and with high purity.
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