Synthetic Entry to Tricyclic and Tetracyclic Quinuclidine Derivatives by Cycloaddition and Ring Transformation
作者:Wafaa S. Hamama、Osama M. Abd El-Magid、Hanafi H. Zoorob
DOI:10.1515/znb-2006-0119
日期:2006.1.1
The (Z)-2-arylidene-quinuclidines 5 - 8 were synthesized. Their reaction with aliphatic dibasic functional reagents in both basic and acidic conditions afforded the fused heterocycles 9, 10 and 11. However, the reaction of arylidene derivative 5 with an aromatic dibasic functional reagent gave benzimidazole 13 in lieu of the anticipated tetracyclic system, quinuclidino[3,2-e]benzo[b]-1,4-diazepine
(Z)-2-亚芳基-奎宁环5-8被合成。它们在碱性和酸性条件下与脂肪族二元官能试剂反应得到稠合杂环 9、10 和 11。然而,亚芳基衍生物 5 与芳香族二元官能试剂反应得到苯并咪唑 13,代替预期的四环系统奎宁环[ 3,2-e]苯并[b]-1,4-二氮杂 12。5与不同试剂的环加成得到杂环衍生物17、19、22和23。5与过量间苯二酚的酸催化环化得到24。化合物9a 、19和24显示出抗菌活性。