New cleavable isocyanides for the combinatorial synthesis of α-amino acid analogue tetrazoles
作者:Josef Mayer、Michael Umkehrer、Cédric Kalinski、Günther Ross、Jürgen Kolb、Christoph Burdack、Wolfgang Hiller
DOI:10.1016/j.tetlet.2005.08.101
日期:2005.10
3-Substituted 3-isocyano propionates as new cleavable isocyanides in combinatorial tetrazole synthesis via Ugi-reaction are introduced. The obtained 5-substituted tetrazoles are transformed into carboxylic acid isosteric 5-substituted 1H-tetrazoles under basic cleavage conditions. (c) 2005 Elsevier Ltd. All rights reserved.