Tetrahedron p. 879 - 886 (1984)
Update date:2022-08-10
Topics:
Boyle, Peter H.
Lockhart, Ronan J.
5-Aminofurazano<3,4-d>pyrimidines carrying a variety of substituents at position 7 suffer ring cleavage by either acid or base to give 4-guanidino-3-furazancarboxylic acid (6), the esters of which can be recyclised to give the pterin analog 5-amino-7(6H)-
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