Synthesis of novel heterocycles: oxazolo [4, 5-b] pyridines and oxazolo [4, 5-d] pyrimidines
M Doise, F Dennin, D Blondeau, H Sliwa
Index: Doise; Dennin; Blondeau; Sliwa Tetrahedron Letters, 1990 , vol. 31, # 8 p. 1155 - 1156
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Citation Number: 29
Abstract
Abstract Novel purine isosters (title compounds) have been prepared by condensation of the appropriate o-hydroxyaminoazine with ethyl orthoformate; extension to other orthoesters and to benzyl thioacetimidate afford 2-alkyl substituted derivatives of these new fused heterocycles.
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