Pyrido[2,3-d]pyrimidines 3. Synthesis an
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O. A. Burova; I. D. Bystryakova; N. M. Smirnova; T. S. Safonova
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Article
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1991
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Springer US
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English
⚖ 393 KB
Oxo-l,2,4.triazoio[4,3-a]quinoline.9-carboxylic Acid Anilide (Vllb). A mixture of 2.78 g (10 mmole) of anilide IIc, 0.72 g (12 mmole) of urea, and 30 ml of ethylene glycol was refluxed, after which it was cooled, and the resulting precipitate was reerystaUized.