An N,N-disubstituted cyclo-beta(3)-tetrapeptide, identified as a potential molecular scaffold, has been synthesised on a multigram scale from beta-homophenylalanine by employing a nosylate-based protection strategy. C-2-Symmetric derivatives containing pseudoaxial, combinatorially addressable functionalities have been prepared from the parent cyclopeptide. (C) 2000 Elsevier Science Ltd. All rights reserved.
An N,N-disubstituted cyclo-beta(3)-tetrapeptide, identified as a potential molecular scaffold, has been synthesised on a multigram scale from beta-homophenylalanine by employing a nosylate-based protection strategy. C-2-Symmetric derivatives containing pseudoaxial, combinatorially addressable functionalities have been prepared from the parent cyclopeptide. (C) 2000 Elsevier Science Ltd. All rights reserved.