Pirodavir

Research use only, not for human use.

Pirodavir (R 77975) is the prototype of a novel class of broad-spectrum antipicornavirus compounds; potent human rhinovirus (HRV) capsid-binding inhibitor.

Pirodavir (R 77975) is the prototype of a novel class of broad-spectrum antipicornavirus compounds; potent human rhinovirus (HRV) capsid-binding inhibitor.(In Vitro):Pirodavir is a potent, broad-spectrum picornavirus inhibitor. Pirodavir inhibits 80 of the 100 human rhinovirus (HRV) strains tested at a concentration of 64 ng/mL. In that same study, Pirodavir is also effective in inhibiting 16 enteroviruses, with a mean 80% inhibitory concentration (IC80) of 1,300 ng/mL. Pirodavir inhibits enterovirus 71 replication with an IC50 of 5,420 nM and an IC90 of >13,350 nM. Pirodavir inhibits 56 rhinovirus laboratory strains and three of the clinical isolates tested. Pirodavir inhibits 59% of the serotypes and isolates with IC50s of <100 nM. Pirodavir concentrations of 16 and 4μg/mL reduces cell growth by 66% (s.e.m. 0.75) and 28% (s.e.m. 0.25), respectively. Lower concentrations (1μg/mL) of Pirodavir are not inhibitory for cell growth. The 50% cytotoxic concentration of pirodavir for logarithmic cell growth at 37°C is 7μg/mL. Under the conditions of the antiviral assay (confluent HeLa cells at 33°C), the 50% cytotoxic concentration is >50μg/mL.

Pirodavir is a potent, broad-spectrum picornavirus inhibitor. Pirodavir inhibits 80 of the 100 human rhinovirus (HRV) strains tested at a concentration of 64 ng/mL. In that same study, Pirodavir is also effective in inhibiting 16 enteroviruses, with a mean 80% inhibitory concentration (IC80) of 1,300 ng/mL. Pirodavir inhibits enterovirus 71 replication with an IC50 of 5,420 nM and an IC90 of >13,350 nM. Pirodavir inhibits 56 rhinovirus laboratory strains and three of the clinical isolates tested. Pirodavir inhibits 59% of the serotypes and isolates with IC50s of <100 nM. Pirodavir concentrations of 16 and 4μg/mL reduces cell growth by 66% (s.e.m. 0.75) and 28% (s.e.m. 0.25), respectively. Lower concentrations (1μg/mL) of Pirodavir are not inhibitory for cell growth. The 50% cytotoxic concentration of pirodavir for logarithmic cell growth at 37°C is 7μg/mL. Under the conditions of the antiviral assay (confluent HeLa cells at 33°C), the 50% cytotoxic concentration is >50μg/mL.

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R 77975

Immunology/Inflammation

Antiviral

Rhinovirus

Infection

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124436-59-5

369.46

C21H27N3O3

>98% (HPLC)

DMSO: 67 mg/mL

O=C(OCC)C1=CC=C(OCCC2CCN(C3=NN=C(C)C=C3)CC2)C=C1

Ethyl p-(2-(1-(6-methyl-3-pyridazinyl)-4-piperidyl)ethoxy)benzoate

(-20℃)

With Ice Pack

≥ 2 years