Phosphinate, sulfonate, and sulfonamidate dipeptides as potential inhibitors of Escherichia coli aminopeptidase N
作者:Ke-Wu Yang、Frank C. Golich、Tara K. Sigdel、Michael W. Crowder
DOI:10.1016/j.bmcl.2005.08.055
日期:2005.12
In an effort to prepare novel inhibitors of bacterial aminopeptidase N (PepN), the phosphinate, propenylphosphinate, decylphosphinate, sulfonate, and sulfonamidate analogs of Ala-Ala were synthesized and tested as inhibitors. Phosphinate I was shown to inhibit PepN with a K-i of 10 mu M, and propenylphosphinate 2 and decylphosphinate 3 inhibited PepN with a K-i of ca. 1 mu M. Sulfonate and sulfonamidate analogs did not inhibit PepN. (c) 2005 Elsevier Ltd. All rights reserved.
The Synthesis of α-Azidoesters and Geminal Triazides
作者:Philipp Klahn、Hellmuth Erhardt、Andreas Kotthaus、Stefan F. Kirsch
DOI:10.1002/anie.201402433
日期:2014.7.21
representatives of this novel class of triazide compounds: Despite their high nitrogen content, the geminaltriazides are easy to handle, even when preparative‐scale syntheses are performed. (Caution: These procedures still require protective measures!) The triazides are now broadly available for further studies regarding their properties and reactivity. Furthermore, we show how the method can be used to