- Cobalt-Catalyzed Desymmetric Isomerization of Exocyclic Olefins
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Chiral cyclic olefins, 1-methylcyclohexenes, are versatile building blocks for the synthesis of pharmaceuticals and natural products. Despite the prevalence of these structural motifs, the development of efficient synthetic methods remains an unmet challenge. Herein we report a novel desymmetric isomerization of exocyclic olefins using a series of newly designed chiral cobalt catalysts, which enables a straightforward construction of chiral 1-methylcyclohexenes with diversified functionalities. The synthetic utility of this methodology is highlighted by a concise and enantioselective synthesis of a natural product, β-bisabolene. The versatility of the reaction products is further demonstrated by multifarious derivatizations.
- Lan, Yu,Liu, Qiang,Liu, Shihan,Liu, Xufang,Rong, Xianle
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supporting information
p. 20633 - 20639
(2021/12/17)
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- NOVEL 5 or 8-SUBSTITUTED IMIDAZO [1, 5-a] PYRIDINES AS SELECTIVE INHIBITORS OF INDOLEAMINE AND/OR TRYPTOPHANE 2, 3-DIOXYGENASES
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Disclosed herein are 5 or 8-substituted imidazo [1, 5-a] pyridines and pharmaceutical compositions comprising at least one such 5 or 8-substituted imidazo [1, 5-a] pyridines, processes for the preparation thereof, and the use thereof in therapy. Disclosed herein are certain 5 or 8-substituted imidazo [1, 5-a] pyridines that can be useful for inhibiting indoleamine 2, 3-dioxygenase and/or tryptophane 2, 3-dioxygenase and for treating diseases or disorders mediated thereby.
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- Optimization of TRPV6 calcium channel inhibitors using a 3D ligand-based virtual screening method
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Herein, we report the discovery of the first potent and selective inhibitor of TRPV6, a calcium channel overexpressed in breast and prostate cancer, and its use to test the effect of blocking TRPV6-mediated Ca2+-influx on cell growth. The inhib
- Simonin, Céline,Awale, Mahendra,Brand, Michael,Van Deursen, Ruud,Schwartz, Julian,Fine, Michael,Kovacs, Gergely,H?fliger, Pascal,Gyimesi, Gergely,Sithampari, Abilashan,Charles, Roch-Philippe,Hediger, Matthias A.,Reymond, Jean-Louis
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supporting information
p. 14748 - 14752
(2016/02/05)
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- Design and synthesis of novel small molecule CCR2 antagonists: Evaluation of 4-aminopiperidine derivatives
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A novel N-(2-oxo-2-(piperidin-4-ylamino)ethyl)-3-(trifluoromethyl)benzamide series of human CCR2 chemokine receptor antagonists was identified. With a pharmacophore model based on known CCR2 antagonists a new core scaffold was designed, analogues of it synthesized and structure-affinity relationship studies derived yielding a new high affinity CCR2 antagonist N-(2-((1-(4-(3-methoxyphenyl)cyclohexyl)piperidin-4-yl)amino)-2-oxoethyl)-3-(trifluoromethyl)benzamide.
- Vilums,Zweemer,Dekkers,Askar,De Vries,Saunders,Stamos,Brussee,Heitman,Ijzerman
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supporting information
p. 5377 - 5380
(2015/01/09)
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- Aryl extensions of thienopyrimidinones as fibroblast growth factor receptor 1 kinase inhibitors
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Optimization of thienopyrimidinone derivatives as FGFR1 kinase inhibitors is being pursued. The present results confirm predictions of computational modeling that an aryl substituent can be introduced at the 2-position in structure 3. The substituent is anticipated to project deeper into the binding site and provide opportunities for enhanced activity and selectivity. The most potent analog reported herein, 13, has a 4-hydroxyphenyl substituent and yields an IC50 of 6 μM for inhibition of phosphorylation by FGFR1 kinase. It was also found that the western anisole-containing substituent in 3 can be replaced by a propionic acid group with no loss in potency and with potentially significant gains in pharmacologically relevant properties.
- Ekkati, Anil R.,Mandiyan, Valsan,Ravindranathan, Krishna P.,Bae, Jae H.,Schlessinger, Joseph,Jorgensen, William L.
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p. 2228 - 2231
(2011/05/05)
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- Novel 4-(4-aryl)cyclohexyl-1-(2-pyridyl)piperazines as Δ8- Δ7 sterol isomerase (emopamil binding protein) selective ligands with antiproliferative activity
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To find Δ8-Δ7 sterol isomerase (EBP) selective ligands, various arylpiperazines previously studied and structurally related to some σ receptors ligands were preliminarily screened. Consequently, a novel series of 2- or 2,6-disubstitu
- Berardi, Francesco,Abate, Carmen,Ferorelli, Savina,De Robertis, Anna F.,Leopoldo, Marcello,Colabufo, Nicola A.,Niso, Mauro,Perrone, Roberto
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supporting information; experimental part
p. 7523 - 7531
(2009/12/07)
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- GUANIDINE DERIVATIVES AND USE THEREOF AS NEUROPEPTIDE FF RECEPTOR ANTAGONISTS
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The invention relates to guanidine derivatives of formula (I) where: A = a chain of 3-c6 carbon atoms, one of which can be replaced by -N(R')- or -O- and R' = H or a substituent, where the ring skeleton only contains both double bonds of the thiazole component, the pharmaceutically-acceptable acid addition salts of basic compounds of formula (I), the pharmaceutically-acceptable salts of compounds of formula (I),, comprising acid groups, with bases, the pharmaceutically-acceptable esters of hydroxy or carboxyl group containing compounds of formula (I) and the solvates or hydrates thereof, which are partly known and partly novel and exhibit a neuropeptide FF receptor antagonist effect. The above are suitable for the treatment of pain and hyperalgesia, withdrawal symptoms in alcohol, psychotropic and nicotine dependencies, for improvement or cure of said dependencies, for regulation of insulin excretion, food intake, memory functions, blood pressure, electrolyte and energy management and for treatment of urinary incontinence. The above can be produced using generally used methods and processed to give medicaments.
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- Nickel-catalyzed cross-couplings of organosilicon reagents with unactivated secondary alkyl bromides
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A metal-catalyzed cross-coupling of organosilicon compounds with alkyl halides has been developed. Noteworthy attributes of the method are its scope (secondary electrophiles), its high functional-group compatibility, and the air stability of the catalyst components. Copyright
- Powell, David A.,Fu, Gregory C.
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p. 7788 - 7789
(2007/10/03)
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- Benzazepine derivatives as inhibitors of hyperproliferation diseases
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A method of treating hyperproliferation diseases in mammals in need of such treatment which method includes administering to said mammal a therapeutically effective amount of a compound of the formula: or a pharmaceutically acceptable salt, hydrate or pro
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- TETRAHYDRO-1H-BENZAZEPINONES AND HEXAHYDROAZEPINONES AS SELECTIVE CHOLECYSTOKININ-B RECEPTOR ANTAGONISTS
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This invention relates to compounds of formula (I) wherein R. sup.1, R. sup.2, R 3, R 4 and X are as defined in the application. These compounds are CCK-B receptor antagonists and are useful in the treatment and prevention of central nervous system and gastrointestinal disorders. STR1
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