Rilpivirine hydrochloride  (Synonyms: TMC-278 hydrochloride; TMC278 hydrochloride; TMC 278 hydrochloride)

Rilpivirine (R278474) hydrochloride is a potent and specific diarylpyrimidine (DAPY) non-nucleoside reverse transcriptase inhibitor (NNRTI). Rilpivirine hydrochloride has high antiviral activity against wild-type HIV (EC₅₀=0.4 nM) and mutant viruses (EC₅₀=0.1-2.0 nM). Rilpivirine hydrochloride has a high genetic barrier to resistance development of HIV^[1][2].

IC50: 20±10 μM (MMP)^[1] Ki: 1.5±0.27 nM (MMPs)^[1]

R278474 is active against wild-type HIV-1 (EC₅₀=0.4 nM) and all single and double mutants tested (EC₅₀=0.1-2.0 nM)^[1].
R278474 (10-5000 nM; 30 d) does not observe the sign of wild-type HIV-1 breakthrough at 1 μM within 30 days^[1].
R278474 inhibits 81% of clinical isolates (about 1200 recombinant clinical isolates) at a 50% inhibitory concentration (EC₅₀) less than 1 nM, and inhibits 94% at EC₅₀ less than 10 nM^[1].
TMC278 shows subnanomolar EC₅₀s against wild-type HIV-1 group M isolates (0.07-1.01 nM)^[2].

MedChemExpress (MCE) has not independently confirmed the accuracy of these methods. They are for reference only.

R278474 (10-160 mg/kg; p.o. for 1 month) does not produce abnormal effects in rat, apart from liver weight increase and species-specific thyroid hypertrophy, both at the higher dose levels^[1].
R278474 (i.v.) exhibits elimination half-life ranges from 4.4 h in rat to 31 h in dog, and exposure (AUC_inf) amounts to 3.1 μg h/mL (4 mg/kg) in rat, 8.7 μg h/mL (1.25 mg/kg) in dog, 1.4 μg h/mL (1.25 mg/ kg) in monkey, and 44 μg h/mL (1.25 mg/kg) in rabbit^[1].
R278474 (p.o.) exhibits half-life ranges between 2.8 h in rat and 39 h in dog, and oral bioavailability of 32% and 31% in rat and dog^[1].

MedChemExpress (MCE) has not independently confirmed the accuracy of these methods. They are for reference only.

402.88

C₂₂H₁₉ClN₆

700361-47-3

Solid

White to off-white

N#CC1=CC=C(NC2=NC=CC(NC3=C(C)C=C(/C=C/C#N)C=C3C)=N2)C=C1.Cl

Room temperature in continental US; may vary elsewhere.

4°C, sealed storage, away from moisture

*In solvent : -80°C, 6 months; -20°C, 1 month (sealed storage, away from moisture)

* Please refer to the solubility information to select the appropriate solvent. Once prepared, please aliquot and store the solution to prevent product inactivation from repeated freeze-thaw cycles.
Storage method and period of stock solution: -80°C, 6 months; -20°C, 1 month (sealed storage, away from moisture). When stored at -80°C, please use it within 6 months. When stored at -20°C, please use it within 1 month.

• [1]. Shiori Haga, et al. TACE Antagonists Blocking ACE2 Shedding Caused by the Spike Protein of SARS-CoV Are Candidate Antiviral Compounds. Antiviral Res. 2010 Mar;85(3):551-5.  [Content Brief]

  [2]. Wang R, et al. A Disintegrin and Metalloproteinase Domain 17 Regulates Colorectal Cancer Stem Cells and Chemosensitivity Via Notch1 Signaling. Stem Cells Transl Med. 2016 Mar;5(3):331-8.  [Content Brief]

  [3]. Kruse MN, et al. Human meprin alpha and beta homo-oligomers: cleavage of basement membrane proteins and sensitivity to metalloprotease inhibitors. Biochem J. 2004 Mar 1;378(Pt 2):383-9.  [Content Brief]