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- W2078016377 abstract "6-Aminouracil and 6-aminothiouracil (1a, b) were reacted with benzylidenemalononitrile 2a to afford the pyrido[2,3-d]pyrimidines 4a, b. On the other hand, the reaction of 1a, b with benzylidene ethyl cyanoacetate 2b result in a mixture of 5a,b and/or 6a,b respectively. Pyrido[2,3-d]thiazolo[1,2-b]pyrimidines 8a-c were synthesized from the reaction of 4b with α-halo compounds to give the intermediate derivatives 7a-c followed by cyclization using 70% H2SO4." @default.
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- W2078016377 date "1999-02-01" @default.
- W2078016377 modified "2023-10-18" @default.
- W2078016377 title "Synthesis of Pyrido[2,3-d]pyrimidines via the Reaction of Activated Nitrites with Aminopyrimidines" @default.
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- W2078016377 doi "https://doi.org/10.1002/jccs.199900009" @default.
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