- 作者: Yuh-Wen Ho
- 中文摘要: 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-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 carbohydrazide 1 with appropriate alkylethoxymethylenes and ketene dithioacetals 4a-4h, respectively.
- 英文摘要: --
- 中文關鍵字: --
- 英文關鍵字: --