Synthesis and Biological Activities of Some New C-Aminomethylation of 5H-5-Aryl-6,7,8,9-tetrahydrothiazolo[2,3-b]quinazolin-3(2H)-one and 6H-6-Aryl-2,3,7,8,9,10-hexahydrothiazino[2,3-b]quinazolin-4(3H)-one
作者:Damerakonda Kumaraswamy、V. Mallareddy
DOI:10.14233/ajchem.2016.19939
日期:——
The synthesis of 5H-5-aryl-6,7,8,9-tetrahydrothiazolo[2,3-b]quinazolin-3(2H)-one and 6H-6-aryl-2,3,7,8,9,10-hexahydrothiazino[2,3-b]quinazolin-4(3H)-one, reaction between 4-aryl-3,4,5,6,7,8-hexahydroquinazolin-2-thione and methyl chloroacetate and ethyl b-bromo propionate. The Mannich reaction on 5H-5-aryl-6,7,8,9-tetrahydrothiazolo[2,3-b]quinazolin-3(2H)-one and 6H-6-aryl-2,3,7,8,9,10-hexahydrothiazino[2,3-b]quinazolin-4(3H)-one in ethanol, aqueous formaldehyde and different secondary amines yielded a single product C-Mannich base in each case. The obtained C-Mannich bases (compounds VIII and X) have been characterized on the basis of analytical spectral data. These C-Mannich bases have been screened for their antibacterial, antifungal, anti-inflammatory and analgesic activities.
5H-5-芳基-6,7,8,9-四氢噻唑并[2,3-b]喹唑啉-3(2H)-酮和 6H-6-芳基-2,3,7,8,9,10-六氢噻唑并[2,3-b]喹唑啉-4(3H)-酮的合成,4-芳基-3,4,5,6,7,8-六氢喹唑啉-2-硫酮与氯乙酸甲酯和 b-溴丙酸乙酯的反应。在乙醇、甲醛水溶液和不同的仲胺中,5H-5-芳基-6,7,8,9-四氢噻唑并[2,3-b]喹唑啉-3(2H)-酮和 6H-6-芳基-2,3,7,8,9,10-六氢噻唑并[2,3-b]喹唑啉-4(3H)-酮的曼尼希反应均产生了单一产物 C-曼尼希碱。根据分析光谱数据,对获得的 C-Mannich 碱(化合物 VIII 和 X)进行了表征。对这些 C-Mannich 碱进行了抗菌、抗真菌、抗炎和镇痛活性筛选。