306768-94-5

Upstream product

• 62-53-3 aniline 
• 619-73-8 4-nitrobenzyl chloride 
• 555-16-8 4-nitrobenzaldehdye 
• 103-71-9 phenyl isocyanate 
• 623-04-1 4-aminobenzenemethanol 

Downstream Products

• 87743-56-4 1-(4-formylphenyl)-3-phenylurea 
• 306768-56-9 (3S)-(3,4-dimethoxyphenyl)-3-[(2S)-{2,4-dioxo-1-[4-(3-phenylureido)benzyl]-1,3-diazaspiro[4.5]dec-3-yl}-4-methylpentanoylamino]propionic acid 
• 306768-98-9 (2S)-{2,4-dioxo-1-[4-(3-phenylureido)benzyl]-1,3-diazaspiro[4.5]dec-3-yl}-4-methylpentanoic acid 
• 306768-95-6 N-[4-(chloromethyl)phenyl]-N'-phenyl-urea 

Relevant academic research and scientific papers

Design, synthesis and antitumor assessment of phenylureas bearing 5-fluoroindolin-2-one moiety

Background: The development of novel antineoplastic agents remains highly desirable. Objective: This study focuses on the design, synthesis, and antitumor evaluation of phenyl ureas bearing 5-fluoroindolin-2-one moiety. Methods: Three sets of phenylureas were designed and synthesized and their antiproliferative abil-ity was measured against four human carcinoma cell lines (Hela, Eca-109, A549, and MCF-7) via MTT assay. In vivo anticancer activity was further evaluated in xenograft models of human breast cancer (MCF-7). Results: A total of twenty-one new compounds were synthesized and characterized by means of1 H and13 C NMR as well as HR-MS. Three sets of compounds (1a?1c, 2a?2c, and 3a?3c) were ini-tially constructed, and preliminary antiproliferative activities of these molecules were evaluated against Hela, Eca-109, A549 and MCF-7, highlighting the meta-substituted phenylureas (1a?1c) as the most cytotoxic set. A series of meta-substituted phenylureas derivatives (1d?1o) were then designed and synthesized for structure-activity relationship study. Most of the new compounds showed desirable cytotoxicity, among which compound 1g exhibited the most remarkable cyto-toxic effects against the tested human cancer cells with IC50 values ranging from 1.47 to 6.79 μM. Further studies showed that compound 1g suppressed tumor growth in human breast cancer (MCF-7) xenograft models without affecting the body weight of its recipients. Conclusion: In this study, twenty-one new compounds, containing the privileged structures of phenylurea and 5-fluoroindolin-2-one, were designed and synthesized. Subsequent structure-activity studies showed that 1g was the most bioactive antitumor agent among all tested com-pounds, hence a potentially promising lead compound once given further optimization.

Design and synthesis of novel benzoxazole analogs as Aurora B kinase inhibitors

A novel series of benzoxazole analogs was designed and synthesized, and their inhibitory activities against Aurora kinases were evaluated. Some of the tested compounds exhibited a promising activity with respect to the inhibition of Aurora B kinase. A structure-activity relationship study indicated that linker length, regiochemistry, and halogen substitution play important roles in kinase inhibitory potency. The binding modes between representative compounds and Aurora kinases were interpreted through a molecular docking study to explain the inhibitory activity and selectivity for Aurora A and B kinases. Compounds 13l and 13q also show an antiproliferative effect on the human tumor cell lines in a dose-dependent manner. The most potent 13q demonstrated good efficacy in the prostate cancer PC-3 tumor xenograft model.

Synthesis and evaluation of fluoroquinolone derivatives as substrate-based inhibitors of bacterial efflux pumps

Bacterial efflux pump systems contribute to antimicrobial resistance in pathogenic bacteria. The co-administration of bacterial efflux pump inhibitors with antibiotics is being pursued to overcome efflux-mediated resistance to antibiotics. In this study we investigated a strategy for converting broad-spectrum efflux pump substrates, fluoroquinolone antibacterial agents which are inherently recognized by most efflux transporters, into expanded spectrum efflux pump inhibitors. Employing this strategy against organisms expressing efflux pumps from the MFS, MATE and RND classes of pump systems, we report here the identification of an ofloxacin-based EPI that is a potent inhibitor of MFS (NorA) and MATE (MepA) efflux pumps in Staphylococcus aureus. The methods described here outline a process that we feel will be broadly applicable to the systematic identification of bacterial efflux pump inhibitors.

Pyrazolopyridines, their preparation and their medical use

The invention relates to pyrazolopyridines according to the general Formula I and the salts thereof, to pharmaceutical compositions comprising the pyrazolopyridines and to a method of preparing the pyrazolopyrimidines as well as the use thereof for manufa

Aromatic β-amino acids as Asp-Phg mimics in LDV derived VLA-4 antagonists

Aromatic β-amino acid esters 2a-h were prepared in racemic and enantiomerically pure form by the Radionow reaction or based on the method described by Davis and used as mimics of the Asp-Phg C-terminus in LDV derived VLA-4 antagonists. As a promising β-am

Spiroimidazolidine derivatives, their preparation, their use and pharmaceutical preparations formed therefrom

The present invention relates to spiroimidazolidine derivatives of the formula I in which E, V, W, X, R1and R2have the meanings indicated in the claims. The compounds of the formula I are valuable pharmaceutical active compounds which are suitable, for example, for the therapy and prophylaxis of inflammatory disorders, such as, for example, rheumatoid arthritis, or allergic disorders. The compounds of the formula I are also inhibitors of the adhesion and migration of leukocytes and/or antagonists of the adhesion receptor VLA-4 belonging to the integrins group. They are generally suitable for the therapy and prophylaxis of illnesses which are caused by an undesired extent of leukocyte adhesion and/or leukocyte migration or are associated therewith or in which cell-cell or cell-matrix interactions which are based on interactions of VLA-4 receptors with their ligands play a part. The invention also relates to processes for the preparation of the compounds of the formula I, pharmaceutical preparations which contain compounds of the formula I, and methods for treating these disorders.