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Vemurafenib

Vemurafenib is a first generation selective B-Raf inhibitor that has been approved for clinical use in treating unresectable or metastatic melanoma; it exhibits anticancer chemotherapeutic activity. Vemurafenib binds the ATP-binding domain of mutant (V600E) B-Raf, present in many cancer subtypes, to inhibit downstream MEK and ERK signaling. This compound inhibits MAPK signaling and cell cycle progression in cells expressing mutant (V600E) B-Raf, but may increase MAPK signaling in cells expressing WT B-Raf. Subjects undergoing treatment with Vemurafenib have potential to develop verrucal keratosis and cutaneous squamous cell carcinoma as side effects. Vemurafenib is currently under examination as a potential treatment against tumors expressing H-Ras mutations as well.

References PubMed ID::http://www.ncbi.nlm.nih.gov/pubmed/18978783

Cas No.

1029872-54-5

Purity

≥98%

Formula

C23H18ClF2N3O3S

Formula Wt.

489.92

Chemical Name

N-(3-(5-(4-chlorophenyl)-1H-pyrrolo[2,3-b]pyridine-3-carbonyl)-2,4-difluorophenyl)propane-1-sulfonamide

IUPAC Name

N-[3-[5-(4-chlorophenyl)-1H-pyrrolo[2,3-b]pyridine-3-carbonyl]-2,4-difluorophenyl]propane-1-sulfonamide

Synonym

PLX-4032; RG7204; RO5185426

Appearance

White to off white powder

Anforth R, Blumetti TC, Clements A, et al. Systemic Retinoids for the Chemoprevention of Cutaneous Squamous Cell Carcinoma and Verrucal Keratosis in a Cohort of Patients on BRAF inhibitors. Br J Dermatol. 2013 Jul 20. PMID: 23870055.

Beck D, Niessner H, Smalley KS, et al. Vemurafenib potently induces endoplasmic reticulum stress-mediated apoptosis in BRAFV600E melanoma cells. Sci Signal. 2013 Jan 29;6(260):ra7. PMID: 23362240.

Huang T, Karsy M, Zhuge J, et al. B-Raf and the inhibitors: from bench to bedside. J Hematol Oncol. 2013 Apr 25;6:30. PMID: 23617957.

PF 03084015