Discovery of 1-(3,3-Dimethylbutyl)-3-(2-fluoro-4-methyl-5-(7-methyl-2-(methylamino)pyrido[2,3-d]pyrimidin-6-yl)phenyl)urea (LY3009120) as a Pan-RAF Inhibitor with Minimal Paradoxical Activation and Activity against BRAF or RAS Mutant Tumor Cells was written by Henry, James R.;Kaufman, Michael D.;Peng, Sheng-Bin;Ahn, Yu Mi;Caldwell, Timothy M.;Vogeti, Lakshminarayana;Telikepalli, Hanumaiah;Lu, Wei-Ping;Hood, Molly M.;Rutkoski, Thomas J.;Smith, Bryan D.;Vogeti, Subha;Miller, David;Wise, Scott C.;Chun, Lawrence;Zhang, Xiaoyi;Zhang, Youyan;Kays, Lisa;Hipskind, Philip A.;Wrobleski, Aaron D.;Lobb, Karen L.;Clay, Julia M.;Cohen, Jeffrey D.;Walgren, Jennie L.;McCann, Denis;Patel, Phenil;Clawson, David K.;Guo, Sherry;Manglicmot, Danalyn;Groshong, Chris;Logan, Cheyenne;Starling, James J.;Flynn, Daniel L.. And the article was included in Journal of Medicinal Chemistry in 2015.Recommanded Product: 5-Bromo-2-fluoro-4-methylaniline This article mentions the following:
The RAS-RAF-MEK-MAPK cascade is an essential signaling pathway, with activation typically mediated through cell surface receptors. The kinase inhibitors vemurafenib and dabrafenib, which target oncogenic BRAF V600E, have shown significant clin. efficacy in melanoma patients harboring this mutation. Because of paradoxical pathway activation, both agents were demonstrated to promote growth and metastasis of tumor cells with RAS mutations in preclin. models and are contraindicated for treatment of cancer patients with BRAF WT background, including patients with KRAS or NRAS mutations. To eliminate the issues associated with paradoxical MAPK pathway activation and to provide therapeutic benefit to patients with RAS mutant cancers, we sought to identify a compound not only active against BRAF V600E but also wild type BRAF and CRAF. On the basis of its superior in vitro and in vivo profile, compound 13 was selected for further development and is currently being evaluated in phase I clin. studies. In the experiment, the researchers used many compounds, for example, 5-Bromo-2-fluoro-4-methylaniline (cas: 945244-29-1Recommanded Product: 5-Bromo-2-fluoro-4-methylaniline).
5-Bromo-2-fluoro-4-methylaniline (cas: 945244-29-1) belongs to organobromine compounds. Many of the organo bromine compounds are relatively nonpolar. Bromine is more electronegative than carbon (2.8 vs 2.5) and hence the carbon in a carbon鑱砨romine bond is electrophilic in nature. Many of the alkyl bromine derivatives are excellent alkylating agents since bromides are good leaving groups. Tribromides, like tetrabutylammonium tribromide, are used as a solid source of bromine. N-bromosuccimide (NBS) is used for the selective bromination of allylic bonds.Recommanded Product: 5-Bromo-2-fluoro-4-methylaniline
Referemce:
Bromide – Wikipedia,
bromide – Wiktionary