Open-chain acetonides of D-galactono-1,4-lactone as starting materials for pyrrolidines, azepanes and 5-azidomethyltetrahydrofuran-2-carboxylates: monomers for polyhydroxylated nylon and for tetrahydrofuran carbopeptoids
Open-chain acetonides of D-galactono-1,4-lactone as starting materials for pyrrolidines, azepanes and 5-azidomethyltetrahydrofuran-2-carboxylates: monomers for polyhydroxylated nylon and for tetrahydrofuran carbopeptoids
From sequencamers to foldamers? Tetrameric furanose carbopeptoids from cis- and trans-5-aminomethyl-tetrahydrofuran-2-carboxylates
作者:Daniel D. Long、Natasha L. Hungerford、Martin D. Smith、Dominic E.A. Brittain、Daniel G. Marquess、Timothy D.W. Claridge、George W.J. Fleet
DOI:10.1016/s0040-4039(99)00110-0
日期:1999.3
The synthesis of three stereoisomeric cis- and trans-5-azidomelhyl-tetrahydrofuran-2-carboxylates in which a ketal-protected cis-diol unit is present is described. The monomers undergo efficient oligomerisation to tetrameric carbopeptoids in which the diol protection facilitates ready purification by chromatography which augurs well for the formation of homogeneous higher polymers. (C) 1999 Elsevier Science Ltd. All rights reserved.