We report here a facile preparation of highly water-soluble derivatives C(70)[p-C(6)H(4)(CH(2))(n)COOH](8) (n = 2, 3) starting from readily available chlorinated [70]fullerene precursors C(70)Cl(8) and C(70)Cl(10). The synthesized fullerene derivatives showed pronounced antiviral activity in vitro, particularly against human immunodeficiency virus (HIV) and influenza A virus (subtypes H1N1 and H3N2).
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