- Visible-Light-Induced ortho-Selective Migration on Pyridyl Ring: Trifluoromethylative Pyridylation of Unactivated Alkenes
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The photocatalyzed ortho-selective migration on a pyridyl ring has been achieved for the site-selective trifluoromethylative pyridylation of unactivated alkenes. The overall process is initiated by the selective addition of a CF3 radical to the alkene to provide a nucleophilic alkyl radical intermediate, which enables an intramolecular endo addition exclusively to the ortho-position of the pyridinium salt. Both secondary and tertiary alkyl radicals are well-suited for addition to the C2-position of pyridinium salts to ultimately provide synthetically valuable C2-fluoroalkyl functionalized pyridines. Moreover, the method was successfully applied to the reaction with P-centered radicals. The utility of this transformation was further demonstrated by the late-stage functionalization of complex bioactive molecules.
- Jeon, Jinwon,He, Yu-Tao,Shin, Sanghoon,Hong, Sungwoo
-
supporting information
p. 281 - 285
(2019/11/26)
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- MITOCHONDRIAL INHIBITORS FOR THE TREATMENT OF PROLIFERATION DISORDERS
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The invention provides compounds of formula (I) or pharmaceutically acceptable salt thereof wherein ring A represents group A-I, A-II or A-III. Al represents -C(R4a)(R4a)-, -C(R4a)= -N(R4b)-, -N= -O- or -S-; A2 represents -C(R4c)(R4c)-, -C(R4c)= or -0-; A3 represents -C(R4c)(R4c)-, -C(R4c)= or -0-; A4 represents -C(R4a)(R4a)-, -C(R4a)= -N= -O- or -S-; A5 represents -C(R4a)(R4a)-, -C(R4a)= -N(R4b)-, -N= -O- or -S-; A6 represents -C(R4c)(R4c)- or -C(R4c)=; A7 represents -C(R4a)(R4a)-, -C(R4a)= -N= -O- or -S-; A8 represents -C(R4a)(R4a)-, -N(R4b)-, -O- or -S-; A9 represents -C(R4c)(R4c)- or -0-; A10 represents -C(R4c)(R4c)- or -0-; A11 represents -C(R4c)(R4c)- or -0-; A12 represents -C(R4a)(R4a)-, -O- or -S-; wherein group A-I, group A-II and group A-III de not contain adjacent oxygen atoms, adjacent oxygen and sulfur atoms or adjacent oxygen and nitrogen atoms or a moiety selected from the group consisting of N-C-N, N-C-S, S-C-S, O-C-N, O-C-O and O-C-S, wherein in each case the carbon atom in the N-C-N, N-C-S, S-C-S, O-C-N, O-C-O and O-C-S moiety is saturated; B1, B2, B3 and B4 represent independently C(R3) or N, wherein no more than two of B1, B2, B3 and B4 represent N; n is 1 or 2; and R1, R2, R3, R4a, R4b and R4c are as defined in the claims, as well as methods of using the compounds to treat proliferation diseases, in particular cancer.
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Page/Page column 75
(2019/05/02)
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- Visible-Light-Induced C2 Alkylation of Pyridine N-Oxides
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A photoredox catalytic method has been developed for the direct C2 alkylation of pyridine N-oxides. This reaction is compatible with a range of synthetically relevant functional groups for providing efficient synthesis of a variety of C2-alkylated pyridine N-oxides under mild conditions. Mechanistic studies are consistent with the generation of a radical intermediate along the reaction pathway.
- Zhang, Wen-Man,Dai, Jian-Jun,Xu, Jun,Xu, Hua-Jian
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p. 2059 - 2066
(2017/02/26)
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- Cyclic gyrase and topoisomerase IV inhibitor
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The invention belongs to the technical field of medicament, and particularly relates to a compound shown in formula (I) (please see the formula (I) in the description), and acceptable salt, ester or stereoisomer of the compound in pharmacy. R1, R2, a ring
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-
Paragraph 0155; 0156; 0157
(2017/01/02)
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- PYRIDINEAMINE COMPOUNDS USEFUL AS PIM KINASE INHIBITORS
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The present disclosure describes pyridineamine compounds, as well as their compositions and methods of use. The compounds inhibit the activity of the Pim kinases, and are useful in the treatment of diseases related to the activity of Pim kinases including, e.g., cancer, immune disorders and other diseases. Formula (I).
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Page/Page column 195
(2016/12/22)
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- FACTOR XIa INHIBITORS
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The present invention provides a compound of Formula (I); and pharmaceutical compositions comprising one or more said compounds, and methods for using said compounds for treating or preventing thromboses, embolisms, hypercoagulability or fibrotic changes. The compounds are selective Factor XIa inhibitors or dual inhibitors of Factor XIa and plasma kallikrein.
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Page/Page column 38
(2016/11/02)
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- Enantiopure synthesis of 7-(1-pyrindanyl)propargyl ethers as rasagiline analogues via chemical or enzymatic resolution of 1-pyrindan-7-ol
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In this work, the enantiopure synthesis of 7-(1-pyrindanyl)propargyl ethers - rasagiline analogues - via chemical and/or enzymatic resolution of the racemic precursor 1-pyrindan-7-ol is described. (R)-Methoxyphenylacetic acid - (R)-MPAA - and (S)-methoxyphenylacetic acid - (S)-MPAA were used as chemical resolution agents, whereas Candida antarctica lipase B (CALB) was employed as kinetic resolution catalyst. The enzymatic resolution was successfully achieved by two different approaches: (1) transesterification of racemic 1-pyrindan-7-ol, which was found to selectively acylate the (R)-enantiomer with high efficiency; (2) hydrolysis of the racemic 7-(1-pyrindanyl)acetate, which was also highly selective to the (R)-enantiomer. The enzymatic hydrolysis was performed in a non-aqueous solvent using a lipase with significant absorbed water content. The configuration of the two enantiomers of 1-pyrindan-7-ol (and consequently of the 7-(1-pyrindanyl)propargyl ethers) were unequivocally determined by X-ray crystallography and/or specific optical rotation.
- Sousa, Carlos A. D.,Sampaio-Dias, Ivo E.,Rizzo-Aguiar, Fabio,Garcia-Mera, Xerardo,Rodríguez-Borges, José E.
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p. 104509 - 104515
(2015/12/24)
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- Organocatalysts with carbon-centered activity for CO2 reduction with boranes
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We report two organocatalysts for CO2 hydroboration to methylborylethers, which upon hydrolysis can produce methanol. These organocatalysts feature carbon-centered reversible CO2 binding, broad borane scopes, and high catalytic activities.
- Yang, Yanxin,Xu, Maotong,Song, Datong
-
supporting information
p. 11293 - 11296
(2015/07/07)
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- BICYCLIC AROMATIC CARBOXAMIDE COMPOUNDS USEFUL AS PIM KINASE INHIBITORS
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The present disclosure describes bicyclic aromatic carboxamide derivatives, as well as their compositions and methods of use. The compounds inhibit the activity of the Pim kinases, and are useful in the treatment of diseases related to the activity of Pim kinases including, e.g., cancer and other diseases.
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-
Paragraph 0530; 0531
(2014/07/23)
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- THIAZOLECARBOXAMIDES AND PYRIDINECARBOXAMIDE COMPOUNDS USEFUL AS PIM KINASE INHIBITORS
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The present disclosure describes thiazole and pyridine carboxamide derivatives, their compositions and methods of use. The compounds inhibit the activity of the Pim kinases and are useful in the treatment of diseases related to the activity of Pim kinases including, e.g., cancer and other diseases.
- -
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Paragraph 0639; 0640
(2014/07/23)
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- Synthesis of New Propargylated 1-Pyrindane Derivatives as Rasagiline Analogues
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Rasagiline is a compound with important neuroprotective activity applicable to the treatment of neurodegenerative diseases. This work describes an easy and straightforward methodology to the synthesis of new propargylated rasagiline analogues derived from commercially available 6,7-dihydro-5H-cyclopenta[b] pyridine. Georg Thieme Verlag Stuttgart - New York.
- Pereira, Cidáliasilva,Salgado, Sofia,Rizzo-Aguiar, Fabio,Garcia-Mera, Xerardo,Rodríguez-Borges, Josée.
-
supporting information
p. 837 - 838
(2013/05/21)
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- DERIVATIVES OF AMINOINDANES, THEIR PREPARATION AND THEIR APPLICATION IN THERAPEUTICS
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The instant invention relates to derivatives of formula (I) and their application in therapeutics.
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Page/Page column 45
(2011/10/03)
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- Derivatives of aminoindanes, their preparation and their application in therapeutics
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The instant invention relates to derivatives of formula (I) and their application in therapeutics.
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Page/Page column 24
(2011/10/12)
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- CEPHALOSPORIN HAVING CATECHOL GROUP
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The present invention provides Cephem compounds which have a wide antimicrobial spectrum and have potent antimicrobial activity against beta-lactamase producing Gram negative bacteria as follows: A compound of the formula: wherein, X is N, CH or C-Cl; T is S or the like; A and G are lower alkylene or the like; B is a single bond or the like; D is a single bond, -NR7-, -CO-, -CO-NR7-, -NR7-CO-, -NR7-CO-NR7-, or the like; E is optionally substituted lower alkylene; F is a single bond or optionally substituted phenylene; R3, R4, R5 and R6 each is independently hydrogen, halogene, nitrile, or the like; or an ester, a compound protected at the amino on the ring in the 7-side chain, a pharmaceutically acceptable salt, or a solvate thereof.
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Page/Page column 99-101
(2011/07/30)
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- SUBSTITUTED PHENYLENEDIAMINES AS INHIBITORS OF THE INTERACTION BETWEEN MDM2 AND P53
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The present invention provides compounds of formula (I), their use as an inhibitor of a p53-MDM2 interaction as well as pharmaceutical compositions comprising said compounds of formula (I).
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Page/Page column 32
(2009/04/25)
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- Site-selective sp2 and benzylic sp3 palladium-catalyzed direct arylation
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Palladium-catalyzed site selective arylation reactions of both sp2 and benzylic sp3 sites on azine and diazine N-oxide substrates are described that occur in good to excellent yield and with complete selectivity for reaction at the desired position. These studies have uncovered the need to properly control the metal to ligand ratio in sp2 arylation and necessitated a complete reinvestigation of all reaction parameters for sp3 arylation. From these studies, the choice of base emerged as a pivotal component for site selectivity, pointing to its intimate involvement in the mechanism of direct arylation. These site selective reactions have been validated in both divergent and sequential derivatizations of heterocyclic compounds represent an attractive alternative to other routes to this class of molecule. Copyright
- Campeau, Louis-Charles,Schipper, Derek J.,Fagnou, Keith
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p. 3266 - 3267
(2008/10/09)
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- Synthesis and resolution of planar-chiral derivatives of 4- (dimethylamino)pyridine
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A safer and more efficient method for the synthesis of planar-chiral 4-(dimethylamino)pyridine (DMAP) derivatives has been developed. Racemic mixtures of the complexes can be resolved via classical resolution with commercially available tartaric acids.
- Wurz, Ryan P.,Lee, Elaine C.,Ruble, J. Craig,Fu, Gregory C.
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p. 2345 - 2352
(2008/09/19)
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- FUSED AND SPIROCYCLE COMPOUNDS AND THE USE THEREOF
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The invention relates to fused and spirocycle compounds of Formula (I), or a pharmaceutically acceptable salt, prodrug, or solvate thereof, wherein R1, R2, Q1-Q3, and Z are defined as set forth in the specification. The invention is also directed to the use of compounds of Formula (I) to treat, prevent or ameliorate a disorder responsive to the blockade of calcium channels, and particularly N-type calcium channels. Compounds of the present invention are especially useful for treating pain.
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Page/Page column 73
(2008/06/13)
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- Iridium catalysts with bicyclic pyridine-phosphinite ligands: Asymmetric hydrogenation of olefins and furan derivatives
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(Chemical Equation Presented) Superior bicyclics: Iridium catalysts as 1 derived from pyridine-phosphinite ligands considerably extend the scope of asymmetric hydrogenation. In addition to various unfunctionalized and functionalized olefins, furans, and benzofurans, for which no catalysts were known before, are also hydrogenated with high enantioselectivity (see scheme).
- Kaiser, Stefan,Smidt, Sebastian P.,Pfaltz, Andreas
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p. 5194 - 5197
(2007/10/03)
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- Kinetic resolution of diols and pyridyl alcohols by cu(II)(borabox)- catalyzed acylation
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Boron-bridged bisoxazoline (borabox) ligands have been used in the copper(II)-catalyzed benzoylation of pyridyl alcohols and 1,2-diols. Efficient kinetic resolution of 1,2-diols was achieved using both borabox and bisoxazoline (box) ligands. Borabox ligands induced high selectivities in the benzoylation of suitable pyridyl alcohols, where they outperformed bisoxazolines. In addition, highly enantioselective Cu(II)(borabox)-catalyzed benzoylation has been used for the synthesis of both enantiomers of a pyridyl alcohol.
- Mazet, Clement,Roseblade, Stephen,Koehler, Valentin,Pfaltz, Andreas
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p. 1879 - 1882
(2007/10/03)
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- A series of non-quinoline cysLT1 receptor antagonists: SAR study on pyridyl analogs of Singulair
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The structure-activity relationship of a series of styrylpyridine analogs of MK-0476 (montelukast, Singular) is described. This work has led to the identification of a number of potent and orally active cysLT1 receptor (LTD4 receptor) antagonists including 2ab (L-733,321) as an optimized candidate.
- Guay, Daniel,Gauthier,Dufresne,Jones,McAuliffe,McFarlane,Metters,Prasit,Rochette,Roy,Sawyer,Zamboni
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p. 453 - 458
(2007/10/03)
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- A New Approach to the Preparation of 1,6- and 1,7-Naphthyridines
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Substituted 1,6- and 1,7-naphthyridines can be prepared by a simple route from readily available pyrindane; this method is more flexible and produces higher yields than previous routes.
- Giam, C. S.,Ambrozich, Deborah
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p. 265 - 266
(2007/10/02)
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