Short solution phase preparation of fused azepine-tetrazoles via a UDC (Ugi/de-Boc/cyclize) strategy

Thomas Nixey, Michael Kelly, David Semin, Christopher Hulme

Research output: Contribution to journalArticlepeer-review

66 Scopus citations


A novel application of the TMSN3 modified Ugi 4-component reaction is disclosed for the solution phase synthesis of fused azepine-tetrazole libraries. The reaction of a N-Boc-α-amino aldehyde, secondary amine, methyl isocyanoacetate and trimethylsilylazide in methanol, followed by acid treatment, proton scavenging and reflux affords bicyclic azepine-tetrazoles. This efficient protocol, producing products with three diversity points, can be used to generate arrays of biologically relevant small molecules for general and targeted screening.

Original languageEnglish (US)
Pages (from-to)3681-3684
Number of pages4
JournalTetrahedron Letters
Issue number20
StatePublished - May 13 2002
Externally publishedYes

ASJC Scopus subject areas

  • Biochemistry
  • Drug Discovery
  • Organic Chemistry


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