Facile Route for Novel Quinazolinone-Fused Azauracils through Cyclodesulfurization of Thioquinazolinones

摘要

An efficient, novel, short, and high-yielding one-pot pro-tocol for the synthesis of diverse quinazolinone-fused azauracil het-erocycles through cyclodesulfurization and intramolecular cyclization of thioquinazolinone using silver cyanate is described.