1VRH:
reference: Synthesis and activity of piperazine-containing antirhinoviral agents and crystal structure of SDZ 880-061 bound to human rhinovirus 14., Oren DA, Zhang A, Nesvadba H, Rosenwirth B, Arnold E, J Mol Biol 1996 May 31;259(1):120-34. PMID: 8648640

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