Synthesis of C6A-to-C6A and C3A-to-C3A diamide linked γ-cyclodextrin dimers
摘要:
The syntheses of three new diamide-linked gamma-cyclodextrin dimers joined by substitution at either a glucopyranose C6(A) or C3(A) carbon are reported. The syntheses involve the reaction of either C6(A) or C3(A) amino-substituted gamma-cyclodextrin with bis(4-nitrophenyl)succinate to form succinamide linked gamma-cyclodextrin dimers or reaction of C6(A) aside-substituted gamma-cyclodextrin with carbon dioxide to form a urea linked gamma-cyclodextrin dimer. (C) 2010 Elsevier Ltd. All rights reserved.