Abstract
New types of oxazolo[5,4-d]pyrimidines were synthesized via 1,8-diazabicyclo[5,4,0]undec-7-ene-catalyzed heteroannulation of 2-substituted 5-amino-4-cyano-1,3-oxazoles with various isothiocyanates.
ACKNOWLEDGMENTS
This work is dedicated to Professor Han Zuilhof and Tom Wennekes of the laboratory of Organic Chemistry at Wageningen University for their technical assistance of this research.