5734-66-7Relevant academic research and scientific papers
Discovery and SAR of 6-alkyl-2,4-diaminopyrimidines as histamine H 4 receptor antagonists
Savall, Brad M.,Chavez, Frank,Tays, Kevin,Dunford, Paul J.,Cowden, Jeffery M.,Hack, Michael D.,Wolin, Ronald L.,Thurmond, Robin L.,Edwards, James P.
, p. 2429 - 2439 (2014/04/17)
This report discloses the discovery and SAR of a series of 6-alkyl-2-aminopyrimidine derived histamine H4 antagonists that led to the development of JNJ 39758979, which has been studied in phase II clinical trials in asthma and atopic dermatitis. Building on our SAR studies of saturated derivatives from the indole carboxamide series, typified by JNJ 7777120, and incorporating knowledge from the tricyclic pyrimidines led us to the 6-alkyl-2,4-diaminopyrimidine series. A focused medicinal chemistry effort delivered several 6-alkyl-2,4-diaminopyrimidines that behaved as antagonists at both the human and rodent H4 receptor. Further optimization led to a panel of antagonists that were profiled in animal models of inflammatory disease. On the basis of the preclinical profile and efficacy in several animal models, JNJ 39758979 was selected as a clinical candidate; however, further development was halted during phase II because of the observation of drug-induced agranulocytosis (DIAG) in two subjects.
Direct synthesis of 5- and 6-substituted 2-aminopyrimidines as potential non-natural nucleobase analogues
Radhakrishnan,Sharma, Namita,Kundu, Lal Mohan
, p. 15087 - 15090 (2014/04/17)
A series of 2-aminopyrimidine derivatives, substituted at 5- and 6-positions, were synthesized. The reaction was carried out in a single step by treatment of the corresponding β-ketoester or β-aldehydoester with guanidine hydrochloride in the presence of K2CO3, in a microwave-assisted method without the requirement of solvent. A unique 1:1 co-crystal structure was obtained which shows that a 6-phenyl-2- aminopyrimidinone forms a strong nucleobase-pair with cytosine, involving three hydrogen bonds. The base-pair was found to be as strong as that of natural guanine:cytosine (G:C), signifying the potential application of the synthesized derivatives. Additionally, we also report a second co-crystal involving 5-isopropyl-6-methyl-2-aminopyrimidinone and cytosine in a 1:1 ratio, which also shows strong base-pairing properties. the Partner Organisations 2014.
Quinolinyl pyrimidines: Potent inhibitors of NDH-2 as a novel class of anti-TB agents
Shirude, Pravin S.,Paul, Beena,Roy Choudhury, Nilanjana,Kedari, Chaitanya,Bandodkar, Balachandra,Ugarkar, Bheemarao G.
, p. 736 - 740 (2012/10/29)
NDH-2 is an essential respiratory enzyme in Mycobacterium tuberculosis (Mtb), which plays an important role in the physiology of Mtb. Herein, we present a target-based effort to identify a new structural class of inhibitors for NDH-2. High-throughput screening of the AstraZeneca corporate collection resulted in the identification of quinolinyl pyrimidines as the most promising class of NDH-2 inhibitors. Structure-activity relationship studies showed improved enzyme inhibition (IC50) against the NDH-2 target, which in turn translated into cellular activity against Mtb. Thus, the compounds in this class show a good correlation between enzyme inhibition and cellular potency. Furthermore, early ADME profiling of the best compounds showed promising results and highlighted the quinolinyl pyrimidine class as a potential lead for further development.
2 -AMINO-PYRIMIDINE DERIVATIVES AS HISTAMINE H4 ANTAGONISTS
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Page/Page column 58, (2009/07/03)
2-Aminopyrimidine derivatives of formula (I), wherein the meaning of the different substituents are those indicated in the description. These compounds are useful as histamine H4 receptor antagonists.
Pyrimidine Derivatives As HSP90 Inhibitors
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Page/Page column 43; 48, (2009/09/07)
The invention provides a compound for use as an inhibitor of Hsp90, the compound having the formula (I): or salts, tautomers, solvates or N-oxides thereof; wherein: A is N or a group CR3; R1 is a monocyclic or bicyclic carbocyclic or
