Mousa, M.H.A. Ahmed, N.S. Schwedtmann, K. Frakolaki, E. Vassilaki, N. Zoidis, G. Weigand, J.J. Abadi, A.H., Design and synthesis of novel symmetric fluorene-2,7-diamine derivatives as potent hepatitis C virus inhibitors, Pharmaceutics, (14), 2021, MDPI AG, 1999-4923