| Bioactivity | Sorivudine (BV-araU) is an orally active synthetic pyrimidine nucleoside antimetabolite drug. Sorivudine derives its antiviral activity from selective conversion by a specific thymidine kinase present in certain DNA viruses to nucleotides, which can in turn interfere with viral DNA synthesis[1]. | ||||||||||||
| Invitro | Sorivudine (BV-araU) inhibits strains of HSV-1 and HSV-2 (wild-type strains VR-3 and UW-268) with ID50s (50% inhibitory dose) of 0.39 and 0.67 μM, respectively[1].Sorivudine has antiviral activity against several viruses including varicella zoster virus, herpes simplex type 1 virus, and Epstein-Barr virus[1].Sorivudine (BV-araU) is a pyrimidine nucleoside analog which has in vitro inhibitory activity against varicella zoster virus (VZV) at concentrations of 00001-0.004 mg/ml These concentrations are over 1000-fold lower than those which are required for the inhibition of VZV replication by acyclovir 3 Sorivudine also inhibits HSV-I replication at concentrations ranging from 0.03-0.1 mg/ml[2]. | ||||||||||||
| In Vivo | Sorivudine (BV-araU) has been evaluated in the treatment of HSV-l encephalitis when administered orally to mice. At dosages in excess of 12.5 mg/kg, survival of treated mice is prolonged. With doses in excess of 50 mg/kg, a significant decrease in mortality was achieved as we1l. A more relevant model is that of simian varicella virus infection in African green monkeys (Cerophithecus aethiops). In this system, Sorivudine therapy at dosages as low as 20 mg/kg per day given intramuscularly or 100 mg/kg per day administered orally completely protected against viremia and mortality. In the conduct of these studies, there was no evidence of neurotoxicity or abnormalities in hematology or clinical chemistries. Doses as low as 0.2 mg/kg per day were effective; however, breakthrough viremia was noted at lower dosages[2]. | ||||||||||||
| Name | Sorivudine | ||||||||||||
| CAS | 77181-69-2 | ||||||||||||
| Formula | C11H13BrN2O6 | ||||||||||||
| Molar Mass | 349.13 | ||||||||||||
| Appearance | Solid | ||||||||||||
| Transport | Room temperature in continental US; may vary elsewhere. | ||||||||||||
| Storage |
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| Reference | [1]. Diasio RB, et al. Sorivudine and 5-fluorouracil; a clinically significant drug-drug interaction due to inhibition of dihydropyrimidine dehydrogenase. Br J Clin Pharmacol. 1998 Jul;46(1):1-4. [2]. Whitley RJ, et al. Sorivudine: a potent inhibitor of varicella zoster virus replication.Adv Exp Med Biol. 1996;394:41-4. |
Sorivudine
CAS: 77181-69-2 F: C11H13BrN2O6 W: 349.13
Sorivudine (BV-araU) is an orally active synthetic pyrimidine nucleoside antimetabolite drug. Sorivudine derives its ant
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