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Ionic Liquid Promoted One-Pot Synthesis of Furo[2,3-d]pyrimidine-2,4(1H,3H)-diones

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The Mannich reaction in the synthesis of N,S-containing heterocycles 9. A new approach to thieno[2,3-d]pyrimidines

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One-pot synthesis of 4,6-diaryl-3-cyanopyridine-2(1H)-thiones and their transformation to substituted thieno[2,3-b;4,5-b]dipyridines and pyrido[3",2":4,5]thieno[3,2-d]pyrimidines

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Unclassical hydrogen bonds of C—H⋅sO and C—H⋅sN in the crystals of 2-amino-3-cyano-4-(3,4-dichlorophenyl)-5-oxo-1,4,5,6-tetrahydro-4H-pyrano[2,3-d]pyrimidine

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