Recent advances in the synthesis and applications of oxazolo[5,4-d]pyrimidines (microreview)

Abstract

Modern methods of synthesis of oxazolo[5,4-d]-pyrimidines published over the past 10 years are reviewed in the present communication. The two main approaches include the synthesis via cyclization of pyrimidine derivatives resulted in the fused oxazole ring or by condensation of oxazole derivatives leading to fused pyrimidine rings.