AB3 building blocks for the synthesis of polyester dendrimers
作者:Jean-d’Amour K. Twibanire、Malcolm P. Huestis、T. Bruce Grindley
DOI:10.1016/j.tetlet.2014.04.073
日期:2014.6
Syntheses of several examples of a new type of trivalent buildingblocks for the preparation of aliphatic polyester dendrimers are presented. Starting from the well-known mono-O-benzylidenepentaerythritol, AB3 type acid dendrons can be obtained in high yield in only two steps. Other triprotected bis-2,2-(hydroxymethyl)-3-hydroxypropanoic acid derivatives with varying protecting groups were also synthesized
Synthesis of achiral α,α-disubstituted β-alanines, and their use in construction of libraries of β-peptide conjugates of N-2-alkyl-1,2,3,4-tetrahydroisoquinolines on a solid support
作者:Petri Heinonen、Pasi Virta、Harri Lönnberg
DOI:10.1016/s0040-4020(99)00378-6
日期:1999.6
Six achiral N-phthaloyl protected alpha,alpha-disubstituted beta-amino acids were synthesized, and used to construct a 96 compound library of 1,2,3,4-tetrahydroisaquinoline conjugates of beta-peptides on a solid support. The library synthesis consisted of attachment of an appropriately 5-O-tethered 1,2,3,4-tetrahydroisoquinoline via the N-2 atom to a vinyl sulfonyl support, elongation of the deprotected 5-O-tether by repeated peptide coupling, quaternarization of N-2 with alkylamines and release of the beta-peptide conjugate into solution with triethylamine. (C) 1999 Elsevier Science Ltd. All rights reserved.
Guindon, Yvan; Girard, Yves; Berthiaume, Sylvie, Canadian Journal of Chemistry, 1990, vol. 68, # 6, p. 897 - 902