Phosphorus, Sulfur and Silicon and the Related Elements p. 1 - 16 (2003)
Update date:2022-08-04
Topics:
Ahmed, Essam Kh.
A highly efficient and versatile synthetic approach to the synthesis of pyrido[4′,3′:4,5]thieno[2,3-d]pyrimidines (3, 7a-c), pyrido[4′,3′:4,5]thieno[2,3-d][1,3]thiazolo[3,2-a]pyrimidines (8, 10-12), (15, 16), pyrido[4″,3″:4′,5′]thieno[2′,3′:4,5] pyrimido[2,1-b][1,3]thiazine (9), and polymethylene condensed (e.g., pyrrolo-, piperidino-, azepino-)pyridothienopyrimidines (18a-c) is described utilizing diethyl 2-amino-4,5,6,7-tetrahydrothieno[2,3-c]pyridine-3,6-dicarboxylate 1 as the starting material.
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