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Please login or sign up for a free trial to access the full content. Variation 1: From 5-Amino-2,6-dihydroxypyrimidine-4-carboxylic Acid

DOI: 10.1055/sos-SD-016-01695

Ishikawa, T.Science of Synthesis, (2004161370.

Reaction of 5-amino-2,6-dihydroxypyrimidine-4-carboxylic acid with urea gives pyrimido[5,4-d]pyrimidine-2,4,6,8-tetrol (106) (Scheme 74).[‌128‌]

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