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2,4-Diaminopyrrolo-[2,3-d]pyrimidines

Book ID: 113411139
Publisher: Elsevier Science
Year: 1996
Tongue: English
Weight: 110 KB
Volume: 1
Category: Article
ISSN: 1359-6446
DOI: 10.1016/1359-6446(96)89096-9

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## Abstract The high‐yield synthesis of the 2,4‐diaminopyrrolo[2,3‐__d__] pyrimidine 4 (PNU‐87663) __via__ a Bischler‐like alkylation‐cyclization sequence was reported earlier. We describe herein an alternative synthesis of this potent antioxidant and several analogs based on the thermal Fischer in