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題 名 | Synthesis of New 2-[(Substituted-pyrazol-1-yl)carbonyl]-thieno[2,3-b]pyridine Derivatives Using 1,3-Diketones, Alkylethoxymethylenes and Ketene Dithioacetals |
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作 者 | 何玉文; | 書刊名 | Journal of the Chinese Chemical Society |
卷 期 | 46:6 1999.12[民88.12] |
頁 次 | 頁947-953 |
分類號 | 346.01 |
關鍵詞 | 吡唑; Pyrazoles; 3-Amino-2-thieno[2,3-b]pyridine carbohydrazide; |
語 文 | 英文(English) |
英文摘要 | The reaction of 3-amino-4,6-dimethyl-2-thieno[2,3-b]pyridine carbohydrazide (1) with appropriate 1,3-diketones 2a-2d in glacial acetic acid afforded 3 3-amino-2-[(3,5-disubstituted-pyrazol-1-yl)carbonyl]-4,6- dimethylthieno[2,3-b]pyridines 3a-3d. 3-Amino-2-[(5-amino-3,4-disubstituted- pyrazol-1-yl)carbonyl]-4,6-dimethylthieno[2,3-b]pyridines 5a-5h were also prepared by treatment of carbobydrazide 1 with appropriate alkylethoxymethylenes and ketene dithioacetals 4a-4h, respectively. |
本系統中英文摘要資訊取自各篇刊載內容。