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N. N. Agrawal and P. A. Soni, “A New Process for the Synthesis of Aurones by Using Mercury (II) Acetate in Pyridine and Cupric Bromide in Dimethyl Sulfoxide,” Indian Journal of Chemistry, Vol. 45B, No. 5, 2006, pp. 1301- 1303.

has been cited by the following article:

• TITLE: Synthesis and Trypanocidal Evaluation of Some Novel 2-(Substituted Benzylidene)-5, 7-Dibromo-6-Hydroxy-1-Benzofuran-3(2H)-Ones

  AUTHORS: K. L. Ameta, Nitu S. Rathore, Biresh Kumar, Edith S. Malaga M, Manuela Verastegui P, Robert H. Gilman, B. L. Verma

  KEYWORDS: Chalcones; Aurones; Trypanosoma cruzi; Chagas Disease; Inhibition

  JOURNAL NAME: International Journal of Organic Chemistry, Vol.2 No.3A, November 29, 2012

  ABSTRACT: Substituted 2-benzylidene-1-benzofuran-3-ones are commonly known as aurones. This class of bioactive heterocycles belongs to flavonoid family. The article intends to put forth the rational design and synthesis of a new series of aurones using 3’,5’-dibromo-2’,4’-dihydroxychalcones and copper bromide in presence of DMF-water mixture (8:2, v/v) for the first time. Preliminary bioassay shows that most of compounds have good trypanocidal activity against Trypanosoma cruzi at 10 μg/mL. Few compounds are equally potent to the standard drugs Benznidazole and Nifurtimox. The structures of the newly synthesized products 2a-n were established by elemental analysis, FTIR, 1H NMR, 13C NMR and mass spectroscopic studies.