Towards hydroxylated nylon 6: oligomers from a protected 6-amino-6-deoxy-d-allonate
摘要:
The first synthesis of linear oligomers (a dimer, tetramer, hexamer and octamer) of fully hydroxylated analogues of nylon 6 by iterative formation of peptide bonds from a protected 6-amino-6-deoxy-D-allonate monomer is reported. (C) 2003 Elsevier Ltd. All rights reserved.
The first synthesis of 1,4-diazepine 2,5-dione peptides containing a β-aminoacid in which the β carbon is also the anomeric carbon of a furanoid sugar is described. These new anomeric spirosugars obtained with a stereoselective control in the d-gulo, d-manno, d-allo and d-ribo series can be regarded as the first members of a new class of spironucleosides. In the course of our study, two symmetrical
作者:Stephen J. Eitelman、Richard H. Hall、Amor Jordaan
DOI:10.1039/c39760000923
日期:——
The reaction of protected aldonic acid lactones with ethyl isocyanoacetate and base in aprotic medium gives either α(formylamino)acrylic ester derivatives or acyclicsugaroxazole derivatives, where base-catalysed elimination reactions can be suppressed.