1. The Combinatorial Synthesis of Bicyclic Privileged Structures or Privileged Substructures
2. bKeay, B. A.InComprehensive Heterocyclic Chemistry II;Katritzky, A. R.; Rees, C. W.; Scriven, E. F. V., Eds.Pergamon:Oxford, UK, 1996; Vol.2, p395.
3. cHepworth, J.InComprehensive Heterocyclic Chemistry;Katrizky, A. R.; Rees, C. W., Eds.Pergamon;Oxford, UK, 1984; Vol.3, p11.For reviews of benzopyrans, see: