Heterocycles p. 2523 - 2536 (2004)
Update date:2022-08-10
Topics:
Batinac, Sanja
Sermek, Draginja Mrvo?
Cetina, Mario
Paveli?, Kre?imir
Mintas, Mladen
Rai?-Mali?, Silvana
The new 5,6-disubstituted pyrimidine nucleoside analogues (5-8) were synthesized by addition of the C-6 lithiated pyrimidine derivative to oxirane as key reaction step. The bicyclic tetrahydrooxepinopyrimidine (9) and fluorinated pyrrolidinopyrimidines (12 and 15) were obtained by intramolecular linkage of acyclic chain to the CH2-5 and N-1 of the pyrimidine ring. The structure of compound (9) containing pyrimidine and tetrahydrooxepine skeleton was determined unequivocally by its X-Ray crystal structure analysis.
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