Here we report a reaction of the fullerene derivatives CArCl, which enables the substitution of Cl with thiophene residues and the formation of the novel family of -symmetrical C fullerene derivatives with six functional addends CArTh. The discovered reaction provided a straightforward approach to the synthesis of previously inaccessible multifunctional water-soluble fullerene derivatives, including the compounds with antiviral activity against human immunodeficiency and influenza viruses.
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