828300-51-2Relevant articles and documents
Design and Synthesis of 56 Shape-Diverse 3D Fragments
Atobe, Masakazu,Blakemore, David C.,Bond, Paul S.,Chan, Ngai S.,De Fusco, Claudia,Downes, Thomas D.,Firth, James D.,Hubbard, Roderick E.,Jones, S. Paul,Klein, Hanna F.,O'Brien, Peter,Roughley, Stephen D.,Vidler, Lewis R.,Waddelove, Laura,Whatton, Maria Ann,Wheldon, Mary C.,Woolford, Alison J.-A.,Wrigley, Gail L.
supporting information, (2020/07/13)
Fragment-based drug discovery is now widely adopted for lead generation in the pharmaceutical industry. However, fragment screening collections are often predominantly populated with flat, 2D molecules. Herein, we describe a workflow for the design and synthesis of 56 3D disubstituted pyrrolidine and piperidine fragments that occupy under-represented areas of fragment space (as demonstrated by a principal moments of inertia (PMI) analysis). A key, and unique, underpinning design feature of this fragment collection is that assessment of fragment shape and conformational diversity (by considering conformations up to 1.5 kcal mol?1 above the energy of the global minimum energy conformer) is carried out prior to synthesis and is also used to select targets for synthesis. The 3D fragments were designed to contain suitable synthetic handles for future fragment elaboration. Finally, by comparing our 3D fragments with six commercial libraries, it is clear that our collection has high three-dimensionality and shape diversity.
NITROGEN-CONTAINING SATURATED HETEROCYCLIC COMPOUND
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Paragraph 0426-0428, (2016/08/29)
The present invention provides a compound represented by the following formula (I) or its pharmaceutically acceptable salt: [wherein, R1 represents optionally substituted C1-4 alkyl, n shows integer of 1 to 4, R2 represents optionally substituted C1-4 alkyl or hydrogen atom, R3 represents optionally substituted C1-4 alkyl, R4a, R4b, R4c, and R4d, similarly or differently, represent optionally substituted C6-14 aryl, optionally substituted C1-4 alkyl, or hydrogen atom and the like, A represents optionally substituted C6-14 aryl or optionally substituted 5 to 11 membered heteroaryl].
INHIBITORS OF BRUTON'S TYROSINE KINASE
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Paragraph 001021, (2016/12/22)
Disclosed herein are reversible and irreversible inhibitors of Bruton's tyrosine kinase (Btk). Also disclosed are pharmaceutical compositions that include the compounds. Methods of using the Btk inhibitors are describeded, alone or in combination with other therapeutic agents, for the treatment of autoimmune diseases or conditions, heteroimmune diseases or conditions, cancer, including lymphoma, and inflammatory diseases or conditions.
SUBSTITUTED PIPERIDINE COMPOUNDS AND THEIR USE AS OREXIN RECEPTOR MODULATORS
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Paragraph 0155; 0156, (2014/09/30)
The present invention is directed to compounds of Formula I: wherein X is CR1 or N; Y is CR2 or N; Z is NH or O; R1 is alkoxy, triazolyl, oxazolyl, isoxazolyl, oxadiazolyl, or pyrimidinyl; R2 is H, alkyl, or halo; R3 is H, alkyl, alkoxy, halo, triazolyl, oxazolyl, or pyrimidinyl; R4 is alkyl; R5 is pyridyl; benzoxazolyl; pyrimidinyl; pyridazinyl; quinoxalinyl; pyrazinyl; or quinazolinyl; wherein the pyridyl; benzoxazolyl; pyrimidinyl; pyridazinyl; quinoxalinyl; pyrazinyl; or quinazolinyl is optionally substituted with one or two substituents independently selected from the group consisting of alkyl, halo, or phenyl; and R6 is H or alkyl. Methods of making the compounds of Formula I are also described. The invention also relates to pharmaceutical compositions comprising compounds of Formula I. Methods of using the compounds of the invention are also within the scope of the invention.
Stereochemical substituent effects: Investigation of the cyano, amide and carboxylate group
Pedersen, Christian Marcus,Bols, Mikael
, p. 115 - 122 (2007/10/03)
Three pairs of diastereomeric piperidines, cis- and trans-2- methylpiperidine-3-carboxylate (6a and 6b), cis- and trans-2-methylpiperidine-3- carboxylamide (9a and 9b) and cis- and trans-2-methyl-3-cyanopiperidine (11a and 11b), were synthesised for the purpose of investigating the effect of the axial versus equatorial carboxylate, carboxamide and cyano group on piperidine base strength. The pKa values of the six compounds were determined to be 11.0 (6a), 10.4 (6b), 9.5 (9a), 9.3 (9b), 7.8 (11a) and 8.0 (11b). This shows that the strong electron-withdrawing effect of the cyano group and the effect of the amide group are relatively independent of spacial orientation. The carboxylate, on the other hand is considerably less electron-withdrawing when axial. Graphical Abstract.
Synthesis and in vitro characterization of new growth hormone secretagogues derived from ipamorelin with dipeptidomimetic N-terminals
Peschke, Bernd,Ankersen, Michael,Sehested Hansen, Birgit,Kruse Hansen, Thomas,Langeland Johansen, Nils,Lau, Jesper,Madsen, Kjeld,Petersen, Hans,Thogersen, Henning,Watson, Brett
, p. 363 - 380 (2007/10/03)
The structural requirements for N-terminal features for the minimal structure of growth hormone secretagogues derived from ipamorelin are investigated. It is found, that incorporation of nonpolar peptidomimetic amino acids at the N-terminal can replace the Aib-His moiety and lead to compounds with high in vitro potency with respect to their growth hormone secretagogue properties. New unnatural amino acids with double bonds, ether- linkages, and 1,3-phenylene-moieties in the backbone proved to be valuable dipeptidomimetics. Using them, growth hormone secretagogues with high potencies were obtained.
