72457-26-2Relevant academic research and scientific papers
Sequential hydroaminomethylation/Pd-catalyzed hydrogenolysis as an atom efficient route to valuable primary and secondary amines
October, Jacquin,Mapolie, Selwyn F.
supporting information, (2021/04/12)
The facile synthesis of valuable primary and secondary amines is reported using a sequential procedure of hydroaminomethylation and Pd-catalyzed hydrogenolysis. The hydroaminomethylation reaction was catalyzed by a cationic Rh(I) iminopyridyl complex and the N-alkylated benzylamines were produced with high chemoselectivity, albeit as mixtures of linear and branched products. Performing the hydrogenolysis reaction using 10% Pd/C, provided access to valuable primary and secondary amines which have applications in the surfactant, pharmaceutical and polymer industries.
HETEROCYCLIC MITOCHONDRIAL ACTIVITY INHIBITORS AND USES THEREOF
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, (2019/05/22)
Heterocyclic compounds of Formula (I) and pharmaceutically acceptable salt thereof are disclosed. The use of such heterocyclic compounds and pharmaceutically acceptable salt thereof for the treatment of cancers, and more particularly cancers sensitive to mitochondrial activity inhibition and increased reactive oxygen species (ROS) levels, is also disclosed. Such cancers include acute myeloid leukemia (AML), preferably AML characterized by certain features, such as high level of expression of one or more Homeobox (HOX)-network genes, high and/or low expression of specific genes, the presence of one or more cytogenetic or molecular risk factors such as intermediate cytogenetic risk, Normal Karyotype (A/K), mutated NPM1, mutated CEBPA, mutated FLT3, mutated DNMT3A, mutated TET2, mutated IDH1, mutated IDH2, mutated RUNX1, mutated WT1, mutated SRSF2, intermediate cytogenetic risk with abnormal karyotype (intern(abnK)), trisomy 8 (+8) and/or abnormal chromosome (5/7), and/or a high leukemic stem cell (LSC) frequency.
Heterocyclization involving benzylic C(sp3)-H functionalization enabled by visible light photoredox catalysis
Pandey, Ganesh,Laha, Ramkrishna,Mondal, Pradip Kumar
, p. 9689 - 9692 (2019/08/15)
A general and efficient method for heterocyclization involving benzylic C(sp3)-H functionalization enabled by visible light photoredox catalysis to access a wide range of structurally diverse oxygen as well as nitrogen heterocycles up to a gram scale is reported. The potential application of this new methodology is demonstrated by the total synthesis of (-)-codonopsinine and (+)-centrolobine. Herein it is proposed that selectfluor, unlike a fluorinating reagent, acts as an oxidative quencher and a hydrogen radical acceptor.
Discovery of Cytochrome P450 4F11 Activated Inhibitors of Stearoyl Coenzyme A Desaturase
Winterton, Sarah E.,Capota, Emanuela,Wang, Xiaoyu,Chen, Hong,Mallipeddi, Prema L.,Williams, Noelle S.,Posner, Bruce A.,Nijhawan, Deepak,Ready, Joseph M.
, p. 5199 - 5221 (2018/06/13)
Stearoyl-CoA desaturase (SCD) catalyzes the first step in the conversion of saturated fatty acids to unsaturated fatty acids. Unsaturated fatty acids are required for membrane integrity and for cell proliferation. For these reasons, inhibitors of SCD represent potential treatments for cancer. However, systemically active SCD inhibitors result in skin toxicity, which presents an obstacle to their development. We recently described a series of oxalic acid diamides that are converted into active SCD inhibitors within a subset of cancers by CYP4F11-mediated metabolism. Herein, we describe the optimization of the oxalic acid diamides and related N-acyl ureas and an analysis of the structure-activity relationships related to metabolic activation and SCD inhibition.
Synthesis of 2-arylpyrroles via catalytic dehydrogenation of 2-aryl-1-pyrrolines in the presence of palladium-supported on alumina
Figueira, Cláudia A.,Lopes, Patrícia S.,Gomes, Pedro T.
, p. 4362 - 4371 (2015/06/08)
A convenient synthesis of 2-arylpyrroles from the catalytic dehydrogenation of 2-aryl-1-pyrrolines in the presence of commercial palladium-supported on alumina (Pd/Al2O3) is described. The reaction scope was tested for aryl substituents with different steric hindrances and electronic natures. The dehydrogenation reaction conditions such as temperature, reflux time and amount of catalyst, revealed to be highly dependent on the 2-aryl substituent group, moderate to high yields and selectivities being obtained in a reaction involving straightforward work-up and purification procedures. In addition, the synthesis of the corresponding 2-aryl-1-pyrroline starting materials, through the cyclisation reaction involving 4-chlorobutyronitrile and aryl Grignard reagents, is also reported.
COMPOUNDS FOR TREATMENT OF CYSTIC FIBROSIS
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Paragraph 00239, (2015/01/16)
Described herein are compounds, compositions, and methods of their use for the treatment of cystic fibrosis.
SODIUM CHANNEL BLOCKERS
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, (2016/01/21)
The present invention relates to sodium channel blockers. The present invention also includes a variety of methods of treatment using these inventive sodium channel blockers.
Design, synthesis, and structure-activity relationships of novel 2-substituted pyrazinoylguanidine epithelial sodium channel blockers: Drugs for cystic fibrosis and chronic bronchitis
Hirsh, Andrew J.,Molino, Bruce F.,Zhang, Jianzhong,Astakhova, Nadezhda,Geiss, William B.,Sargent, Bruce J.,Swenson, Brian D.,Usyatinsky, Alexander,Wyle, Michael J.,Boucher, Richard C.,Smith, Rick T.,Zamurs, Andra,Johnson, M. Ross
, p. 4098 - 4115 (2007/10/03)
Amiloride (1), the prototypical epithelial sodium channel (ENaC) blocker, has been administered with limited success as aerosol therapy for improving pulmonary function in patients with the genetic disorder cystic fibrosis. This study was conducted to synthesize and identify more potent, less reversible ENaC blockers, targeted for aerosol therapy and possessing minimal systemic renal activity. A series of novel 2-substituted acylguanidine analogues of amiloride were synthesized and evaluated for potency and reversibility on bronchial ENaC. All compounds tested were more potent and less reversible at blocking sodium-dependent short-circuit current than amiloride. Compounds 30-34 showed the greatest potency on ENaC with IC50 values below 10 nM. A regioselective difference in potency was found (compounds 30, 39, and 40), whereas no stereospecific (compounds 33, 34) difference in potency on ENaC was displayed. Lead compound 32 was 102-fold more potent and 5-fold less reversible than amiloríde and displayed the lowest IC50 value ever reported for an ENaC blocker.
Sodium channel blockers
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, (2008/06/13)
The present invention relates to sodium channel blockers. The present invention also relates to a variety of methods of treatment using the sodium channel blockers.
Sodium channel blockers
-
, (2008/06/13)
The present invention relates to sodium channel blockers. The present invention also relates to a variety of methods of treatment using these sodium channel blockers.
