Journal
TETRAHEDRON
Volume 59, Issue 36, Pages 7141-7146Publisher
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/S0040-4020(03)01101-3
Keywords
azolo[3,2-a]pyrimidine; imidazo[2,1-b]thiazines; 2H-pyran-2-one
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Suitably functionalized 3-carbomethoxy/cyano-2H-pyran-2-ones are excellent synthons for the synthesis of arenes and heteroarenes of therapeutic importance. The compounds 6-aryl-3-cyano-4-methylsulfanyl-2H-pyran-2-ones have been transformed into bridgedhead azolopyrimidines and imidazothiazines through thermal and base-induced ring transformation reactions with aminoazoles and imidazolidin-2-thiones, respectively. (C) 2003 Elsevier Ltd. All rights reserved.
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