Mericitabine

Mericitabine (RG-7128) is an antiviral drug, a deoxycytidine analog (a type of nucleoside analog). It was developed as a treatment for hepatitis C, acting as a NS5B RNA polymerase inhibitor, but while it showed a good safety profile in clinical trials, it was not sufficiently effective to be used as a stand-alone agent. However mericitabine has been shown to boost the efficacy of other antiviral drugs when used alongside them, and as most modern treatment regimens for hepatitis C use a combination therapy of several antiviral drugs, clinical trials have continued to see if it can form a part of a clinically useful drug treatment program.[1][2]

Mericitabine

Clinical data
Trade names	Mericitabine
Legal status
Legal status	US: Investigational New Drug
Identifiers
IUPAC name [(2R,3R,4R,5R)-5-(4-amino-2-oxopyrimidin-1-yl)-4-fluoro-4-methyl-3-(2-methylpropanoyloxy)oxolan-2-yl]methyl 2-methylpropanoate
CAS Number	940908-79-2
PubChem CID	16122663
ChemSpider	17279576
UNII	TA63JX8X52
KEGG	D10477
Chemical and physical data
Formula	C18H26FN3O6
Molar mass	399.419 g·mol^−1
3D model (JSmol)	Interactive image
SMILES CC(C)C(=O)OC[C@@H]1[C@H]([C@@]([C@@H](O1)N2C=CC(=NC2=O)N)(C)F)OC(=O)C(C)C
InChI InChI=1S/C18H26FN3O6/c1-9(2)14(23)26-8-11-13(28-15(24)10(3)4)18(5,19)16(27-11)22-7-6-12(20)21-17(22)25/h6-7,9-11,13,16H,8H2,1-5H3,(H2,20,21,25)/t11-,13-,16-,18-/m1/s1 Key:MLESJYFEMSJZLZ-MAAOGQSESA-N

See also

• BCX4430
• MK-608
• NITD008
• Valopicitabine

References

1. Gentile I, Coppola N, Buonomo AR, Zappulo E, Borgia G (September 2014). "Investigational nucleoside and nucleotide polymerase inhibitors and their use in treating hepatitis C virus". Expert Opinion on Investigational Drugs. 23 (9): 1211–23. doi:10.1517/13543784.2014.921680. PMID 24848437. S2CID 12115460.
2. Wedemeyer H, Forns X, Hézode C, Lee SS, Scalori A, Voulgari A, et al. (2016). "Mericitabine and Either Boceprevir or Telaprevir in Combination with Peginterferon Alfa-2a plus Ribavirin for Patients with Chronic Hepatitis C Genotype 1 Infection and Prior Null Response: The Randomized DYNAMO 1 and DYNAMO 2 Studies". PLOS ONE. 11 (1): e0145409. Bibcode:2016PLoSO..1145409W. doi:10.1371/journal.pone.0145409. PMC 4713467. PMID 26752189.