Synthesis, characterization and antimicrobial properties of two derivatives of pyrrolidine-2,5-dione fused at positions-3,4 to a dibenzobarrelene backbone

Author:

Sopbué Fondjo EmmanuelORCID,Njoya Abdou SalamouORCID,Tamokou Jean-de-DieuORCID,Doungmo Giscard,Ndjakou Lenta Bruno,Simon Peter F. W.ORCID,Tsopmo Apollinaire,Kuiate Jules-RogerORCID

Abstract

AbstractA new diazo derivative of a pyrrolidine-2,5-dione (8) fused at position-3,4 to a dibenzobarrelene backbone has been prepared by coupling the previously reportedN-arylsuccinimid (5) precursor with aryldiazonium ion of aniline. The initial step of the reaction involved the preparation of the intermediate 9,10-dihydro-9,10-ethanoanthracene-11,12-dicarboxylic anhydride (3) through [4 + 2]-cycloaddition between anthracene and maleic anhydride in refluxing xylene which was then condensed with para-aminophenol to give compound5. Compounds5and8were characterized by their physical, elemental, and spectroscopic data. 2D-NMR (COSY, HSQC, and HMBC) techniques were used to confirm the structure of compound5. Compounds5(MIC = 32–128 μg/mL) and8(MIC = 16–256 μg/mL) along with the precursor3(MIC = 64–128 μg/mL) displayed moderate to low antimicrobial activities against selected bacterial and fungal species when compared with those of nystatin (MIC = 0.50–2 μg/mL) and ciprofloxacin (MIC = 0.50–16 μg/mL) used as reference drugs.Graphical Abstract

Funder

Deutscher Akademischer Austauschdienst

Publisher

Springer Science and Business Media LLC

Subject

General Chemistry

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