1123582-40-0Relevant academic research and scientific papers
Design and synthesis of novel DFG-out RAF/vascular endothelial growth factor receptor 2 (VEGFR2) inhibitors: 3. Evaluation of 5-amino-linked thiazolo[5,4-d]pyrimidine and thiazolo[5,4-b]pyridine derivatives
Hirose, Masaaki,Okaniwa, Masanori,Miyazaki, Tohru,Imada, Takashi,Ohashi, Tomohiro,Tanaka, Yuta,Arita, Takeo,Yabuki, Masato,Kawamoto, Tomohiro,Tsutsumi, Shunichirou,Sumita, Akihiko,Takagi, Terufumi,Sang, Bi-Ching,Yano, Jason,Aertgeerts, Kathleen,Yoshida, Sei,Ishikawa, Tomoyasu
, p. 5600 - 5615 (2012)
Our aim was to discover RAF/vascular endothelial growth factor receptor 2 (VEGFR2) inhibitors that possess strong activity and sufficient oral absorption, and thus, we selected a 5-amino-linked thiazolo[5,4-d]pyrimidine derivative as the lead compound because of its potential kinase inhibitory activities and its desired solubility. The novel tertiary 1-cyano-1-methylethoxy substituent was designed to occupy the hydrophobic region of 'back pocket' of BRAF on the basis of the X-ray co-crystal structure data of BRAF. In addition, we found that N-methylation of the amine linker could control the twisted molecular conformation leading to improved solubility. These approaches produced N-methyl thiazolo[5,4-b]pyridine-5-amine derivative 5. To maximize the in vivo efficacy, we attempted salt formation of 5. Our result indicated that the besylate monohydrate salt form (5c) showed significant improvement of both solubility and oral absorption. Owing to the improved physicochemical properties, compound 5c demonstrated regressive antitumor efficacy in a HT-29 xenograft model.
HETEROCYCLIC COMPOUND AND USE THEREOF
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Page/Page column 102, (2010/06/11)
Disclosed is a heterocyclic compound having a strong Raf inhibitory activity. Specifically disclosed is a compound represented by the formula (I), (II) or (III) below, or a salt thereof. (In the formulae, the symbols are as defined in the description.)
BENZOTHIAZOLE DERIVATIVES AS ANTICANCER AGENTS
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Page/Page column 127-128, (2010/06/20)
Provided is a fused heterocycle derivative showing a strong Raf inhibitory activity. A compound represented by the formula (I) wherein each symbol is as defined in the present specification, or a salt thereof.
