107392-72-3Relevant academic research and scientific papers
Discovery of Potent 2-Aryl-6,7-dihydro-5 H-pyrrolo[1,2- a]imidazoles as WDR5-WIN-Site Inhibitors Using Fragment-Based Methods and Structure-Based Design
Wang, Feng,Jeon, Kyu Ok,Salovich, James M.,Macdonald, Jonathan D.,Alvarado, Joseph,Gogliotti, Rocco D.,Phan, Jason,Olejniczak, Edward T.,Sun, Qi,Wang, Shidong,Camper, Demarco,Yuh, Joannes P.,Shaw, J. Grace,Sai, Jiqing,Rossanese, Olivia W.,Tansey, William P.,Stauffer, Shaun R.,Fesik, Stephen W.
, p. 5623 - 5642 (2018/06/19)
WDR5 is a chromatin-regulatory scaffold protein overexpressed in various cancers and a potential epigenetic drug target for the treatment of mixed-lineage leukemia. Here, we describe the discovery of potent and selective WDR5-WIN-site inhibitors using fragment-based methods and structure-based design. NMR-based screening of a large fragment library identified several chemically distinct hit series that bind to the WIN site within WDR5. Members of a 6,7-dihydro-5H-pyrrolo[1,2-a]imidazole fragment class were expanded using a structure-based design approach to arrive at lead compounds with dissociation constants 10 nM and micromolar cellular activity against an AML-leukemia cell line. These compounds represent starting points for the discovery of clinically useful WDR5 inhibitors for the treatment of cancer.
Imidazole Compound
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Page/Page column 31, (2010/11/29)
An imidazole compound of the formula: wherein Ring A is benzene or a heterocyclic ring; G is alkylthio, alkylsulfonyl, optionally substituted phenyl, or optionally substituted heterocyclic ring group, etc.; Ring C is imidazole; R1 is carbamoyl, etc.; R2 is cyano, nitro, hydroxyl, an alkoxy, a halogen, carboxy, an alkoxycarbonyl, carbamoyl, amino, an alkyl, etc.; m is 0 to 2; and R4 is hydrogen, an alkyl, etc., or a pharmaceutically acceptable salt thereof, is a large conductance calcium-activated K channel opener useful for treatment of pollakiuria, urinary incontinence, etc.
KINASE INHIBITORS
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Page/Page column 30, (2010/02/13)
ABSTRACT The present invention provides kinase inhibitors of Formula I: .
Hydroxylamine function as neighboring group with dehydrogenations
M?hrle, Hans,Arndt, Petra
, p. 688 - 700 (2007/10/03)
The β-amino-hydroxylamines 5a-d are prepared of the α-amino-oximes 1a-d with borane-dimethylsulfide. With mercury-EDTA, 5a-d react to (E/Z)-oxime-lactams 3a-d and benzaldoxime 7. Additionally 5b,c give the bicyclic amidine-N-oxides 8b,c, which slowly hydrolyze to the hydroxylamine-lactams 9b,c. These are easily oxidized to (E/Z)-3b,c. Postulated as intermediates in the mercury-assisted reduction of 5, the cyclic hydroxylamines 10a-d are available from the nitrones 4a-d with LiAlH 4. From 10a-d with mercury-EDTA the same products are obtained as from 5a-d but without 7. Only the pyrrolidine 10a forms besides (E/Z)-3a the nitrone 4a. Thin-layer chromatography shows that the pure isomers of 3a-d in solution isomerize, contrary to the amine-oximes 1a-d. The configuration of the oxime-lactams depends on the manner of preparation. With mercury-EDTA, 1b,c yield 3b,c with retention of the configuration, while the oximation of phenacyl-lactams 13b,c give rise to (E/Z)-mixtures of 3b,c. The condensed imidazoles 12 result from the nitrones 4a-d and the dihydrooxadiazines 2a,d on treatment with hydrogen chloride.
