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The  Petasites hybridus  rhizome water extract as green media was used for the preparation of the Ag/Fe 3 O 4 /TiO 2 /CuO@MWCNTs magnetic nanocomposites and its activity was evaluated by using in the one-pot multicomponent reaction of isoquinoline, α-haloketones, 2-amino benzoic acids, diethyl carbonate, electron deficient acetylenic compounds, ammonium acetate, and  tert -butyl isocyanide in water at room temperature for the production of novel derivatives of pyrimidobenzazepines in excellent yields. Moreover, reduction of organic pollutants such 4-nitrophenol was performed by synthesized Ag/Fe 3 O 4 /TiO 2 /CuO@MWCNTs in water at room temperature. The outcomes showed this catalyst was decreased organic pollutants in few seconds. Because of having azepine moiety, the synthesized compounds show good antioxidant activity. These synthesized compounds also displayed antimicrobial activity by using the disk diffusion procedure and two Gram-positive and Gram-negative bacteria. The employed process for production of benzazepines has some benefits such as short time of reactions, excellent efficiency of product, easy separation of catalyst and products.

Production of Pyrimidobenzazepine Derivatives and Reduction of Organic Pollutant Using Ag/Fe 3 O 4 /TiO 2 /CuO@MWCNTs MNCs