- Discovery of phenylpyrrolidine derivatives as a novel class of retinol binding protein 4 (RBP4) reducers
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Retinol-binding protein 4 (RBP4) is a potential drug target for metabolic and ophthalmologic diseases. A high-throughput screening of our compound library has identified a small-molecule RBP4 reducer 7a, as a hit compound. Aiming to provide a suitable too
- Akao, Yuichiro,Cho, Nobuo,Furuyama, Naoki,Goto, Akihiko,Kamaura, Masahiro,Kasai, Shizuo,Mizukami, Atsushi,Nakamura, Natsuko,Nakamura, Shinji
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supporting information
(2021/12/30)
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- Preparation method of chiral 3-substituted pyrrolidine derivative
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The invention provides a preparation method of a chiral 3-substituted pyrrolidine derivative. The preparation method comprises an intermediate preparation step, a diastereomer mixture preparation step, a chiral separation step and a chiral 3-substituted pyrrolidine derivative synthesis step. According to the invention, through catalytic asymmetric kinetic resolution, a mixture of two diastereoisomers is efficiently converted into a diastereoisomer with a certain single configuration, chiral separation is realized, a key intermediate is obtained with high yield, and a series of chiral 3-substituted pyrrolidine derivatives are synthesized. The whole reaction route is mild in reaction condition, simple and convenient to operate, high in resolution efficiency, high in atom economy, low in costand suitable for industrial scale production.
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Paragraph 0068-0069
(2020/11/01)
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- Method for synthesizing N-Boc-3-pyrrolidine formaldehyde
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The invention discloses a method for synthesizing N-Boc-3-pyrrolidine formaldehyde. The method comprises that dimethyl itaconate as a raw material undergoes an intramolecular cyclization reaction to produce methyl 5-oxo-3-pyrrolidine carboxylate, then the methyl 5-oxo-3-pyrrolidine carboxylate undergoes a reduction reaction to produce pyrrolidine-3-methanol, then the pyrrolidine-3-methanol is subjected to Boc protection so that N-Boc-pyrrolidine-3-methanol is obtained, and finally, the N-Boc-pyrrolidine-3-methanol is oxidized to form a final product compound. The method is simple and convenient, has a low cost, content greater than 99%, produces small environmental pollution and is suitable for industrial production.
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Paragraph 0032; 0034; 0039; 0042; 0044
(2017/06/02)
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- Concise synthesis of bicyclic aminals by way of catalytic intramolecular C-H amination and evaluation of their reactivity as iminium precursors
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The concise synthesis of fused bicyclic aminals by way of intramolecular rhodium-catalyzed C-H amination is reported as well as the evaluation of their reactivity as iminium precursors. In contrast to the well-studied N,O-acetal systems, the aminals synthesized were found to be particularly stable under reaction conditions used for nucleophilic addition.
- Rodriguez-Lucena, David,Morin, Marie S.T.,Compain, Philippe
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scheme or table
p. 155 - 162
(2012/04/04)
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- AURORA KINASE COMPOUNDS AND METHODS OF THEIR USE
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Provided herein are pyrrolotriazine compounds for treatment of Aurora kinase mediated diseases. Also provided are pharmaceutical compositions comprising the compounds and methods of using the compounds and compositions.
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Page/Page column 186
(2011/08/04)
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- Iron(III)-catalyzed consecutive aza-cope-mannich cyclization: Synthesis of trans -3,5-dialkyl pyrrolidines and 3,5-dialkyl-2,5-dihydro-1 H-pyrroles
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An efficient alkene aza-Cope-Mannich cyclization between 2-hydroxy homoallyl tosylamine and aldehydes in the presence of iron(III) salts to obtain 3-alkyl-1-tosyl pyrrolidines in good yields is described. The process is based on the consecutive generation of a γ-unsaturated iminium ion, 2-azonia-[3,3]-sigmatropic rearrangement, and further intramolecular Mannich reaction. Iron(III) salts are also shown to be excellent catalysts for the new aza-Cope-Mannich cyclization using 2-hydroxy homopropargyl tosylamine.
- Carballo, Ruben M.,Purino, Martin,Ramirez, Miguel A.,Martin, Victor S.,Padron, Juan I.
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supporting information; experimental part
p. 5334 - 5337
(2011/01/05)
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- Disubstituted pyrimidines as Lck inhibitors
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We have developed a family of 4-benzimidazolyl-N-piperazinethyl-pyrimidin-2-amines that are subnanomolar inhibitors of Lck. A subset of these Lck inhibitors, with heterocyclic substituents at the benzimidazole C5, are also low-nanomolar inhibitors of cell
- Hunt, Julianne A.,Beresis, Richard T.,Goulet, Joung L.,Holmes, Mark A.,Hong, Xinfang J.,Kovacs, Ernest,Mills, Sander G.,Ruzek, Rowena D.,Wong, Frederick,Hermes, Jeffrey D.,Park, Young-Whan,Salowe, Scott P.,Sonatore, Lisa M.,Wu, Lin,Woods, Andrea,Zaller, Dennis M.,Sinclair, Peter J.
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supporting information; experimental part
p. 5440 - 5443
(2010/04/26)
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- Evaluation of structurally diverse neuronal nicotinic receptor ligands for selectivity at the α6* subtype
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Direct comparison of pyridine versus pyrimidine substituents on a small but diverse set of ligands indicates that the pyrimidine substitution has the potential to enhance affinity and/or functional activity at α6 subunit-containing neuronal nicotinic rece
- Breining, Scott R.,Bencherif, Merouane,Grady, Sharon R.,Whiteaker, Paul,Marks, Michael J.,Wageman, Charles R.,Lester, Henry A.,Yohannes, Daniel
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scheme or table
p. 4359 - 4363
(2010/04/05)
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- QUINOLONE ANTIBACTERIAL AGENTS
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Compounds of formula I and methods for their preparation are disclosed. Further disclosed are methods of making biologically active compounds of formula I as well as pharmaceutically acceptable compositions comprising compounds of formula I. Compounds of formula I as disclosed herein can be used in a variety of applications including use as antibacterial agents.
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Page/Page column 64
(2010/02/11)
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- QUINAZOLINE DERIVATIVES AS ANTITUMOR AGENTS
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A quinazoline derivative of the formula (I): (A chemical formula should be inserted here - please see paper copy enclosed) Formula I wherein the substituents are as defined in the text for use in the production of an anti proliferative effect which effect is produced alone or in part by inhibiting erbB2 receptor tyrosine kinase in a warm blooded animal such as man.
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Page/Page column 164
(2008/06/13)
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- Design and synthesis of potent, orally active, inhibitors of carboxypeptidase U (TAFIa)
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A series of 3-mercapto-propionic acid derivatives that function as reversible inhibitors of carboxypeptidase U have been prepared. We present a successful design strategy using cyclic, low basicity guanidine mimetics resulting in potent, selective and bioavailable inhibitors of carboxypeptidase U (TAFIa).
- Polla, Magnus O.,Tottie, Louise,Norden, Carita,Linschoten, Marcel,Muesil, Djordje,Trumpp-Kallmeyer, Susanne,Aukrust, Inger R.,Ringom, Rune,Holm, Kjetil H.,Neset, Siren M.,Sandberg, Marcel,Thurmond, John,Yu, Peng,Hategan, Georgeta,Anderson, Herb
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p. 1151 - 1175
(2007/10/03)
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- Beta lactam compounds and their use as inhibitors of tryptase
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Beta lactam compounds are provided which have the structure wherein B, A, D, R1, R2, R3 and X1 are as defined herein, and which are useful as inhibitors of tryptase, thrombin, trypsin, Factor Xa, Factor VIIa, and urokinase-type plasminogen activator and may be employed in preventing and/or treating asthma and allergic rhinitis.
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Page/Page column 36-37
(2010/02/07)
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- Pyridine derivatives
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Pyridine compounds of general formula: wherein —R1represents in which R11is hydrogen, C1-6alkyl, halogen, hydroxy, C1-12alkoxy, nitro, amino, C1-6alkylsulfonylamino, C1-6alkoxycarbonyl, C1-6alkylamino, di(C1-6alkyl)amino, C1-6alkanoylamino, phenyl C1-6alkylamino, phenylsulfonylamino, or —O—(CH2)n—R111; R2represents hydrogen or halogen; R3represents hydrogen, —CR31R32R33, or —NR34R35; R4is hydrogen, carbamoyl, CN, carboxyl, etc.; R5is amino, C1-6alkylamino, di C1-6alkylamino, etc. or salt thereof. The compound has an excellent anti-inflammatory activity, and other biological activity.
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- Synthesis of potent and highly selective inhibitors of human tryptase
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The serine protease tryptase has been implicated in allergic and inflammatory diseases and associated with asthma. The synthesis and SAR of a series of N1-activated-4-carboxy azetidinones are described, resulting in identification of BMS-363131 (2) as a potent inhibitor of human tryptase (IC503000-fold) for tryptase versus related serine proteases including trypsin.
- Slusarchyk, William A.,Bolton, Scott A.,Hartl, Karen S.,Huang, Ming-Hsing,Jacobs, Glenn,Meng, Wei,Ogletree, Martin L.,Pi, Zulan,Schumacher, William A.,Seiler, Steven M.,Sutton, James C.,Treuner, Uwe,Zahler, Robert,Zhao, Guohua,Bisacchi, Gregory S.
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p. 3235 - 3238
(2007/10/03)
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- 3-pyrrolidinyloxy-3'-pyridyl ether compounds useful for controlling chemical synaptic transmission
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A series of 3-pyrrolidinyloxy-3′-pyridyl ether compounds, a method for selectively controlling neurotransmitter release in mammals using these compounds, and pharmaceutical compositions including these compounds. Preferred compounds are 3-pyrrolidinylmethoxy-3′-(5′-and/or 6′-substituted) pyridyl ethers.
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- A chemoenzymatic approach to the synthesis of enantiomerically pure aza analogues of paraconic acid methyl ester and both enantiomers of methyl β-proline
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Enantiopure methyl esters of 1-alkyl-5-oxo-3-pyrrolidinecarboxylic acids were obtained by enzymatic resolution of the corresponding chiral racemic mixtures. A particularly favourable interaction, also supported by molecular mechanics calculations, was observed between the 1-benzyl derivative and α-chymotrypsin, for which the enantiomeric ratio, E, exceeded 200. The absolute configurations of the lactams were determined by means of CD spectroscopy. From the resulting enantiomerically pure (99% e.e.) (S)-(+)-1-benzyl-3-pyrrolidinecarboxylic acid and methyl (R)-(-)-1-benzyl-3-pyrrolidinecarboxylate, the methyl esters of (+) and (-)-β-proline were synthesised in 99% e.e. and 18 and 22% overall yield, respectively.
- Felluga, Fulvia,Pitacco, Giuliana,Prodan, Massimo,Pricl, Sabrina,Visintin, Marco,Valentin, Ennio
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p. 3241 - 3249
(2007/10/03)
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- Cyclic amine derivatives, pharmaceutical compositions containing these compounds and methods for preparing them
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Disclosed are new cyclic amine derivatives of the formula I STR1 wherein the substituents are defined in the specification. These compounds are useful as for treating sinus tachycardia.
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- The Use of the β-Amino-Alcohol-N-Oxide Derivatives in the Synthesis of 2,3 or 4-Alkyl Substituted NH Pyrrolidines
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Nonstabilized azomethine ylides generated from the various β-amino alcohols N-oxides 13, 17, 23 and 24 undergo cycloaddition reactions with unactivated alkenes to afford the corresponding pyrrolidines 14a-g, 18a-g, 25 und 27 in moderate to good yields.These compounds are precursors of NH pyrrolidines substituted in position 2, 3 or 4.
- Roussi, Georges,Zhang, Jidong
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p. 5161 - 5172
(2007/10/02)
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- Quinoline-3-carboxylic acid derivatives
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Compounds of formula (I): STR1 (in which R1 is alkoxy, R is alkyl, haloalkyl, alkylamino, cycloalkyl or optionally substituted phenyl, X is chlorine or fluorine and Y is selected from certain specific heterocycles) have excellent antibacterial activity. They may be prepared by introducing the group represented by Y into the corresponding compound in which Y is replaced by a halogen atom.
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- A 3+2 CYCLOADDITION ROUTE TO N-H PYRROLIDINES DEVOID OF ELECTRON-WITHDRAWING GROUPS
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N-H pyrrolidines are obtained from intermolecular 3+2 cycloaddition reactions between nonactivated olefins and ylide generated from amine N-oxide 1 structurally designed in such a way as to allow easy dealkylation of the cycloadduct.
- Roussi, Georges,Zhang, Jidong
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p. 3481 - 3482
(2007/10/02)
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