A general route to the Streptomyces-derived inthomycin family: the first synthesis of (+)-inthomycin B
作者:Michael R. Webb、Craig Donald、Richard J.K. Taylor
DOI:10.1016/j.tetlet.2005.11.042
日期:2006.1
A concise, convergent and stereocontrolledsynthesis of (+)-inthomycin B, based on the Stille coupling of a stannyl-diene with an oxazole vinyl iodide unit, is described. The asymmetric centre was introduced using the Kiyooka keteneacetal/amino acid-derived oxazaborolidinone procedure.
The syntheses of rac-inthomycin A, (+)-inthomycin B and (+)-inthomycin C using a unified synthetic approach
作者:Michael R. Webb、Matthew S. Addie、Catherine M. Crawforth、James W. Dale、Xavier Franci、Mathieu Pizzonero、Craig Donald、Richard J.K. Taylor
DOI:10.1016/j.tet.2008.01.116
日期:2008.5
The Stille coupling between a common oxazole vinyl iodide and stereodefined stannyl-diene units is described as the cornerstone of a unified synthetic route to the inthomycin family of bioactive Streptomyces metabolites. This procedure has been utilised to prepare (+)-inthomycin B and (+)-inthomycin C for the first time; in these examples the stereogenic centre was introduced using the Kiyooka ketene acetal/amino acid-derived oxazaborolidinone variant of the Mukaiyama aldol reaction. In addition, a convenient preparation of rac-inthomycin A is described based on the same strategy. (C) 2008 Elsevier Ltd. All rights reserved.