One Step Conversion of Heteroaromatic-N-Oxides to Imidazolo-Heteroarenes
摘要:
[GRAPHICS]Various pyridine-, quinoline-, isoquinoline-, and pyrimidine-N-oxides were converted to their corresponding alpha-imida-zoloheteroarenes in good yield by treatment with. sulfuryl diimidazole in nonpolar solvents at elevated temperatures.
Lewis Basic Salt-Promoted Organosilane Coupling Reactions with Aromatic Electrophiles
作者:Tyler W. Reidl、Jeffrey S. Bandar
DOI:10.1021/jacs.1c05764
日期:2021.8.11
Lewis basic saltspromote benzyltrimethylsilane coupling with (hetero)aryl nitriles, sulfones, and chlorides as a new route to 1,1-diarylalkanes. This method combines the substrate modularity and selectivity characteristic of cross-coupling with the practicality of a base-promoted protocol. In addition, a Lewis base strategy enables a complementary scope to existing methods, employs stable and easily
Synthesis of Sterically Hindered Primary Amines by Concurrent Tandem Photoredox Catalysis
作者:Michael C. Nicastri、Dan Lehnherr、Yu-hong Lam、Daniel A. DiRocco、Tomislav Rovis
DOI:10.1021/jacs.9b10871
日期:2020.1.15
methodologies exist for amine synthesis, but the direct synthesis of primary amines with a fully substituted α carbon center is an underdeveloped area. We report a method which utilizes photoredox catalysis to couple readily available O-benzoyl oximes with cyanoarenes to synthesize primary amines with fully substituted α-carbons. We also demonstrate that this method enables the synthesis of amines with α-trifluoromethyl
6-heterocyclyl pyrazolo [3,4-d]pyrimidin-4-ones and compositions and
申请人:Sterling Winthrop Inc.
公开号:US05294612A1
公开(公告)日:1994-03-15
Novel 6-heterocyclyl-pyrazolo[3,4-d]pyrimidin-4-ones, useful in treating cardiovascular disease, are prepared by reacting a 5-amino-1H-pyrazole-4-carboxamide with heterocyclylcarboxaldehyde or by reacting a 5-amino-1H-pyrazole-4-carbonitrile with a heterocyclylcarboxamidine, followed by diazotization and hydrolysis of the resulting 4-amino-6-heterocyclyl-pyrazolo[3,4-d]pyrimidine.
Electrochemical Synthesis of Hindered Primary and Secondary Amines via Proton-Coupled Electron Transfer
作者:Dan Lehnherr、Yu-hong Lam、Michael C. Nicastri、Jinchu Liu、Justin A. Newman、Erik L. Regalado、Daniel A. DiRocco、Tomislav Rovis
DOI:10.1021/jacs.9b10870
日期:2020.1.8
Accessing hindered amines, particularly primary amines α to a fully substituted carbon center, is synthetically challenging. We report an electrochemical method to access such hindered amines starting from benchtop-stable iminium salts and cyanoheteroarenes. A wide variety of substituted heterocycles (pyridine, pyrimidine, pyrazine, purine, azaindole) can be utilized in the cross-coupling reaction
[EN] HISTONE DEMETHYLASE INHIBITORS<br/>[FR] INHIBITEURS DE L'HISTONE DÉMÉTHYLASE
申请人:QUANTICEL PHARMACEUTICALS INC
公开号:WO2016044342A1
公开(公告)日:2016-03-24
The present invention relates generally to compositions and methods for treating cancer and neoplastic diseases. Provided herein are substituted imidazole-pyridine derivative compounds and pharmaceutical compositions comprising said compounds. The subject compounds and compositions are useful for inhibition of histone demethylase enzymes. Furthermore, the subject compounds and compositions are useful for the treatment of cancer, such as pancreatic cancer, prostate cancer, breast cancer, bladder cancer, lung cancer, gastric cancer, leukemia and/or melanoma and the like.