123910-86-1Relevant articles and documents
Designing Homogeneous Copper-Free Sonogashira Reaction through a Prism of Pd-Pd Transmetalation
Martek, Bruno A.,Gazvoda, Martin,Urankar, Damijana,Ko?mrlj, Janez
supporting information, p. 4938 - 4943 (2020/05/19)
Simultaneous introduction of two different palladium (pre)catalysts, one tuned to promote oxidative addition to (hetero)aryl bromide and another to activate terminal alkyne substrate, leads to productive Pd-Pd transmetalation, subsequent reductive elimina
Multi-arm polymeric prodrug conjugates of pemetrexed-based compounds
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Page/Page column 29, (2020/08/30)
Among other aspects, provided herein are multi-arm polymeric prodrug conjugates of pemetrexed-based compounds. Methods of preparing such conjugates as well as methods of administering the conjugates are also provided. Upon administration to a patient, release of the pemetrexed-based compound is achieved.
Synthesis and antiviral study of novel 4-(2-(6-amino-4-oxo-4,5-dihydro-1H-pyrrolo[2,3-d]pyrimidin-3-yl)ethyl)benzamide derivatives
Balaraman, Selvakumar,Nayak, Nagaraj,Subbiah, Madhuri,Elango, Kuppanagounder P.
, p. 2538 - 2546 (2018/11/10)
A series of ten new compounds (7a–j) has been synthesized by absolutely replacing the glutamic acid part of Pemetrexed drug, chemically known as N-{4-[2-(2-amino-4-oxo-4,7-dihydro-3H-pyrrolo[2,3-d]pyrimidin-5-yl)ethyl]benzoyl}-l-glutamic acid, with primary, secondary, and aryl amines in high yields using diethylphosphorocyanidate (DEPC) as a peptide coupling agent. All the synthesized compounds are characterized by 1H and 13C NMR, LCMS, and FT-IR spectral techniques. All the synthesized novel non-glutamate 4-(2-(6-amino-4-oxo-4,5-dihydro-1H-pyrrolo[2,3-d]pyrimidin-3-yl)ethyl)benzamide derivatives showed 4- to 7-folds higher antiviral activity than its structurally similar commercial drug Pemetrexed against Newcastle disease virus, an avian paramyxovirus. Among the lot, compounds possessing carboxamide synthesized using five-membered heteroaryl amines (7i and 7j) exhibited the highest antiviral activity. [Figure not available: see fulltext.].
Regioselective Amine–Borane Cyclization: Towards the Synthesis of 1,2-BN-3-Cyclohexene by Copper-Assisted Triazole/Gold Catalysis
Motika, Stephen E.,Wang, Qiaoyi,Akhmedov, Novruz G.,Wojtas, Lukasz,Shi, Xiaodong
supporting information, p. 11582 - 11586 (2016/10/24)
The combination of triazole/gold (TA-Au) and Cu(OTf)2is identified as the optimal catalytic system for promoting intramolecular hydroboration for the synthesis of a six-membered cyclic amine–borane. Excellent yields (up to 95 %) and regioselectivities (5-exo vs. 6-endo) were achieved through catalyst control and sequential dilution. Good functional-group tolerance was attained, thus allowing the preparation of highly functionalized cyclic amine–borane substrates, which could not be achieved using other methods. Deuterium-labeling studies support the involvement of a hydride addition to a gold-activated alkyne with subsequent C?B bond formation.
INHIBITORS OF HISTONE LYSINE SPECIFIC DEMETHYLASE (LSD1) AND HISTONE DEACETYLASES (HDACS)
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Page/Page column 129; 130, (2015/09/28)
A series of phenelzine analogs comprising a phenelzine scaffold linked to an aromatic moiety and their use as inhibitors of lysine-specific demethylase 1 (LSD1) and/or one or more histone deacetylases (HDACs) is provided. The presently disclosed phenelzine analogs exhibit potency and selectivity for LSD1 versus MAO and LSD2 enzymes and exhibit bulk, as well as, gene specific histone methylation changes, anti-proliferative activity in several cancer cell lines, and neuroprotection in response to oxidative stress. Accordingly, the presently disclosed phenelzine analogs can be used to treat diseases, conditions, or disorders related to LSD1 and/or HDACs, including, but not limited to, cancers and neurodegenerative diseases.
Palladium-Catalyzed C-CN activation for intramolecular cyanoesterification of alkynes
Rondla, Naveen R.,Levi, Samuel M.,Ryss, Jonathan M.,Berg, Rachel A. Vanden,Douglas, Christopher J.
supporting information; experimental part, p. 1940 - 1943 (2011/06/17)
Conditions for the C-CN activation and intramolecular cyanoesterification of alkynes to provide butenolides in good to excellent yields are presented. Pd catalysts, high temperatures/short reaction times (microwave irradiation), and Lewis basic solvents m
Use of functionalized onium salts as a soluble support for organic synthesis
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Page/Page column 55, (2010/11/25)
The invention relates to the use of a onium salt functionalized by at least one organic function, as a soluble support, in the presence of at least one organic solvent, for organic synthesis of a molecule, in a homogenous phase, by at least one transformation of said organic function. The onium salt enables the synthesized molecule to be released. The onium salt is present in liquid or solid form at room temperature and corresponds to formula A1+, X1?, wherein A1+ represents a cation and X1? represents an anion.
Synthesis and biological evaluation of the mitochondrial complex 1 inhibitor 2-[4-(4-fluorobutyl)benzylsulfanyl]-3-methylchromene-4-one as a potential cardiac positron emission tomography tracer
Radeke, Heike,Hanson, Kelley,Yalamanchili, Padmaja,Hayes, Megan,Zhang, Zhi-Qin,Azure, Michael,Yu, Ming,Guaraldi, Mary,Kagan, Mikhail,Robinson, Simon,Casebier, David
, p. 4304 - 4315 (2008/03/12)
A series of fluorinated chromone analogs with IC50 values ranging from 9 to 133 nM for the mitochondrial complex I (MC-I) has been prepared. A structure-activity relationship (SAR) study of the most potent fluorinated chromone analog 10 demonstrated the linkage heteroatom preference of the side chain region of the molecule while maintaining potent MC-I inhibitory activity. Tissue distribution studies 30 min after [18F]10 administration to Sprague-Dawley (SD) rats demonstrated high uptake of the radiotracer from the blood pool into the myocardium (2.24% ID/g), kidney (1.93% ID/g), and liver (2.00% ID/g). After 2 h about 66% of the activity in the myocardium at 30 min had been retained, whereas ~70% had been cleared from the liver and kidney. MicroPET images of SD rats after [18F]10 administration allowed easy assessment of the myocardium through 60 min with minimal lung or liver interference.
Gold-catalyzed tandem cycloisomerization-hydroalkoxylation of homopropargylic alcohols
Belting, Volker,Krause, Norbert
, p. 4489 - 4492 (2007/10/03)
The tandem cycloisomerization-hydroalkoxylation of various homopropargylic alcohols in the presence of an alcohol and a dual catalyst system, consisting of a gold precatalyst and a Bronsted acid, provides an efficient route to tetrahydrofuranyl ethers und
Contrast agents for myocardial perfusion imaging
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Page/Page column 43, (2008/06/13)
The present disclosure is directed, in part, to compounds and methods for imaging myocardial perfusion, comprising administering to a patient a contrast agent which comprises a compound that binds MC-1, and an imaging moiety, and scanning the patient using diagnostic imaging.