Sorivudine

Sorivudine
Clinical data
Trade names	Usevir, Brovavir
Other names	BV-araU, Bromovinyl araU, 5-Bromovinyl-araU, 5-[(E)-2-bromoethenyl]-1-[(2R,3S,4S,5R)-3,4-dihydroxy-5-(hydroxymethyl)oxolan-2-yl]pyrimidine-2,4-dione
Routes of; administration	Oral
ATC code	none;
Pharmacokinetic data
Metabolism	Viral thymidine kinase
Excretion	Kidney
Identifiers
	IUPAC name 1-β-D-arabinofuranosyl-5-[(E)-2-bromovinyl]pyrimidine-2,4(1H,3H)-dione;
CAS Number	77181-69-2 ;
PubChem CID	5282192;
ChemSpider	4445384 ;
UNII	C7VOZ162LV;
KEGG	D01734 ;
ChEMBL	ChEMBL375035 ;
Chemical and physical data
Formula	C11H13BrN2O6
Molar mass	349.14 g/mol g·mol−1
3D model (JSmol)	Interactive image;
	SMILES c1c(c(=O)[nH]c(=O)n1[C@H]2[C@H]([C@@H]([C@H](O2)CO)O)O)/C=C/Br;
	InChI InChI=1S/C11H13BrN2O6/c12-2-1-5-3-14(11(19)13-9(5)18)10-8(17)7(16)6(4-15)20-10/h1-3,6-8,10,15-17H,4H2,(H,13,18,19)/b2-1+/t6-,7-,8+,10-/m1/s1 ; Key:GCQYYIHYQMVWLT-HQNLTJAPSA-N ;
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Sorivudine (INN), is a nucleoside analogue antiviral drug, marketed under trade names such as Usevir (Nippon Shoji, Eisai) and Brovavir (BMS).

Pharmacology

Feature

First-line treatment of herpes drug acyclovir was (Zovirax, Activir) from VZV strong activity of the virus.
Undergoes gastrointestinal absorption, absorption from the gastrointestinal tract after the most degrading without being excreted in urine.

Mechanism of action

Sorivudine is phosphorylated by thymidine kinase activity in the body and is absorbed into the virus's DNA instead of the correct nucleoside. It is a competitive inhibitor of DNA polymerase, so the viral DNA cannot be replicated and the virus cannot grow.

Microbiology

Sorivudine is active against most species in the herpesvirus family.

Herpes simplex virus type I (HSV-1)
Varicella zoster virus (VZV)
Epstein-Barr virus (EBV)

Interactions

Sorivudine interacts strongly and in some cases lethally with fluorouracil (5-FU), its prodrugs and related substances. This is based on the metabolite bromovinyluracil (BVU), which irreversibly inhibits the enzyme dihydropyrimidine dehydrogenase (DPD) which is necessary for inactivating 5-FU. The closely related drug brivudine has the same interaction.[1]

Bromovinyluracil (BVU)

References

"UAW – Aus Fehlern lernen - Potenziell tödlich verlaufende Wechselwirkung zwischen Brivudin (Zostex) und 5-Fluoropyrimidinen" (PDF). Deutsches Ärzteblatt (in German). 103 (27). 7 July 2006.

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[1] "UAW – Aus Fehlern lernen - Potenziell tödlich verlaufende Wechselwirkung zwischen Brivudin (Zostex) und 5-Fluoropyrimidinen" (PDF). Deutsches Ärzteblatt (in German). 103 (27). 7 July 2006.