Pteridine derivatives. Part X. The addition reactions of 2-amino-7,8-dihydro-4-hydroxypteridine

Abstract
The unambiguous synthesis of 2-amino-7,8-dihydro-4-hydroxypteridine (III; R = H) is described. Reaction of this dihydropteridine with various nucleophiles has been studied, and the possible biochemical significance of the results is discussed.