Interaction of 5-methoxy-1,2,4-triazines with ureas as a new route to 6-azapurines
Abstract
A tandem of SNH and SNipso reactions leading to imidazo[4,5-e]-1,2,4-trazines (6-azapurines) has been observed in the interaction of 5-methoxy-1,2,4-triazines with