Pseudopeptide synthesis of a pentaazamacrocycle containing two trans-fused cyclohexane rings
摘要:
The synthesis of a bis-cyclohexyl-fused pentaazamacrocycle via head-to-tail pseudopeptide cyclization chemistry is described. The bis-cyclohexyl-fused cyclic pseudopeptide 11 displays intramolecular hydrogen bonding which has been characterized by variable temperature NMR spectroscopy and X-Ray Crystallography. (C) 1997 Elsevier Science Ltd.
Synthesis of conformationally tailored pentaazacyclopentadecanes. Preorganizing peptide cyclizations
摘要:
A general method for the preparation of rigidified pentaazamacrocycles using trans-(1R,2R)-diaminocyclohexane as the conformational controller element. High macrocyclization yields have been obtained by strategic placement of the diaminocyclohexane group within the pseudopeptide backbone. (C) 1997, Elsevier Science Ltd.