substitution reaction Article 2 controlled study 2 human 2 nonhuman 2 1,3,4-oxadiazole 1 2 [[(morpholin 4 yl)ethyl]thio] 5 aryl 1,3,4 oxadiazole derivative 1 2 [[(morpholin 4 yl)ethyl]thio] 5 phenyl 1,3,4 oxadiazole derivative 1 Administration, Intravenous 1 Analgesics, Opioid 1 Antibacterial activity 1 Gram negative bacterium 1 Gram positive bacterium 1 Hemolytic activity 1 Hospitalization 1 Humans 1 Morpholine 1 Pharmacists 1 Practice Patterns, Physicians' 1 United States 1 adult 1 alternative medicine 1 antibacterial activity 1 antiinfective agent 1 article 1 bupivacaine 1 calf (mammal) 1 catalyst 1 clinical practice 1 drug screening 1