Design and synthesis of thrombin receptor-derived nonpeptide mimetics utilizing a piperazine scaffold - Alexopoulos, K.; Fatseas, P.; Melissari, E.; Vlahakos, D.; Smith, J.; Mavromoustakos, T.; Saifeddine, M.; Moore, G.; Hollenberg, M.; Matsoukas, J. (Bioorganic and Medicinal Chemistry, 1999)