552294-86-7

Upstream product

• 443882-99-3 3-chloro-4-(3-fluorobenzyloxy)nitrobenzene 
• 619-08-9 2-chloro-4-nitrophenol 
• 456-42-8 m-fluorobenzyl chloride 
• 202197-26-0 3-chloro-4-(3-fluorobenzyloxy)aniline 
• 456-41-7 1-(Bromomethyl)-3-fluorobenzene 
• 4651-81-4 Methyl 2-aminothiophene-3-carboxylate 
• 56844-40-7 6-bromothieno[2,3-d]pyrimidin-4(3H)-one 
• 14080-50-3 thieno[2,3-d]pyrimidin-4(3H)one 
• 56844-12-3 6-bromo-4-chlorothieno[2,3-d]pyrimidine 

Downstream Products

• 1135150-91-2 C₂₄H₁₅ClFN₃O₃S 
• 1173700-80-5 C₂₈H₂₄ClFN₄O₃S 
• 1135150-94-5 C₂₄H₁₅ClFN₃O₂S₂ 
• 1135150-93-4 C₂₄H₁₅ClFN₃O₂S₂ 
• 1135150-79-6 C₂₃H₁₅ClFN₃OS₂ 
• 1135150-76-3 C₂₃H₁₅ClFN₃O₂S 

Relevant academic research and scientific papers

Identification of fused pyrimidines as interleukin 17 secretion inhibitors

Inhibiting the interleukin 17 pathway is of interest in a number of autoimmune diseases. Herein, 42 fused pyrimidines have been evaluated as interleukin 17 secretion inhibitors using a phenotypic assay with peripheral blood mononuclear cells. 7H-Pyrrolo [

Truncated structures used in search for new lead compounds and in a retrospective analysis of thienopyrimidine-based EGFR inhibitors

An approach for optimization of epidermal growth factor receptor tyrosine kinase (EGFR-TK) inhibitors using truncated thienopyrimidine structures combined with enzymatic assay has been evaluated. This was done by synthesis and EGFR activity measurement of a series of fragment structures and their corresponding drug-model analogues. On average, the activity of the drug-like structures increased a ten-fold as compared to the fragments. However, the potency of the drug-model compound could not be precisely predicted, visualising the typical challenge with linking substructures. Additionally, the activity data provided useful SAR information with respect to stereochemical preference and the structure requirements of the 4-amino group. A retrospective evaluation of binding efficiency in previously discovered thieno[2,3-d]pyrimidines, suggests a high probability of obtaining potent EGFR inhibitors if based on the 3-chloro-4-fluoroaniline moiety. Compounds derived from (S)-2-hydroxy-1-phenylethylamine also have resulted in highly active EGFR-TK inhibitors. In contrast the 3-ethynylaniline containing structures appears more difficult to develop. Thieno[2,3-d]pyrimidin-4-amines have also been used for construction of irreversible EGFR-TK inhibitors. The data indicate these compounds to possess sub-optimal non-covalent interactions.

Protozoan Parasite Growth Inhibitors Discovered by Cross-Screening Yield Potent Scaffolds for Lead Discovery

Tropical protozoal infections are a significant cause of morbidity and mortality worldwide; four in particular (human African trypanosomiasis (HAT), Chagas disease, cutaneous leishmaniasis, and malaria) have an estimated combined burden of over 87 million disability-adjusted life years. New drugs are needed for each of these diseases. Building on the previous identification of NEU-617 (1) as a potent and nontoxic inhibitor of proliferation for the HAT pathogen (Trypanosoma brucei), we have now tested this class of analogs against other protozoal species: T. cruzi (Chagas disease), Leishmania major (cutaneous leishmaniasis), and Plasmodium falciparum (malaria). Based on hits identified in this screening campaign, we describe the preparation of several replacements for the quinazoline scaffold and report these inhibitors' biological activities against these parasites. In doing this, we have identified several potent proliferation inhibitors for each pathogen, such as 4-((3-chloro-4-((3-fluorobenzyl)oxy)phenyl)amino)-6-(4-((4-methyl-1,4-diazepan-1-yl)sulfonyl)phenyl)quinoline-3-carbonitrile (NEU-924, 83) for T. cruzi and N-(3-chloro-4-((3-fluorobenzyl)oxy)phenyl)-7-(4-((4-methyl-1,4-diazepan-1-yl)sulfonyl)phenyl)cinnolin-4-amine (NEU-1017, 68) for L. major and P. falciparum.

Evaluation of aromatic 6-substituted thienopyrimidines as scaffolds against parasites that cause trypanosomiasis, leishmaniasis, and malaria

Target repurposing is a proven method for finding new lead compounds that target Trypanosoma brucei, the causative agent of human African trypanosomiasis. Due to the recent discovery of a lapatinib-derived analog 2 with excellent potency against T. brucei (EC50 = 42 nM) and selectivity over human host cells, we have explored other classes of human tyrosine kinase inhibitor scaffolds in order to expand the range of chemotypes for pursuit. Following library expansion, we found compound 11e to have an EC50 of 84 nM against T. brucei cells while maintaining selectivity over human hepatocytes. In addition, the library was tested against causative agents of Chagas' disease, leishmaniasis, and malaria. Two analogs with sub-micromolar potencies for T. cruzi (4j) and Plasmodium falciparum (11j) were discovered, along with an analog with considerable potency against Leishmania major amastigotes (4e). Besides identifying new and potent protozoan growth inhibitors, these data highlight the value of concurrent screening of a chemical library against different protozoan parasites. This journal is

PROTOZOAN PARASITE GROWTH INHIBITORS

Compounds and methods for inhibiting growth of a protozoan parasite. Methods of treating a protozoan parasite infection in a subject by administering a therapeutically effective amount of a compound as disclosed herein. The compounds and methods can be us

Thienopyrimidine-based dual EGFR/ErbB-2 inhibitors

Two new series of potent and selective dual EGFR/ErbB-2 kinase inhibitors derived from novel thienopyrimidine cores have been identified. Isomeric thienopyrimidine cores were evaluated as isosteres for a 4-anilinoquinazoline core and several analogs conta