594872-65-8Relevant academic research and scientific papers
Process Development of CuI/ABNO/NMI-Catalyzed Aerobic Alcohol Oxidation
Steves, Janelle E.,Preger, Yuliya,Martinelli, Joseph R.,Welch, Christopher J.,Root, Thatcher W.,Hawkins, Joel M.,Stahl, Shannon S.
, p. 1548 - 1553 (2015)
An improved Cu/nitroxyl catalyst system for aerobic alcohol oxidation has been developed for the oxidation of functionalized primary and secondary alcohols to aldehydes and ketones, suitable for implementation in batch and flow processes. This catalyst, which has been demonstrated in a >50 g scale batch reaction, addresses a number of process limitations associated with a previously reported (MeObpy)CuI/ABNO/NMI catalyst system (MeObpy = 4,4′-dimethoxy-2,2′-bipyridine, ABNO = 9-azabicyclo[3.3.1]nonane N-oxyl, NMI = N-methylimidazole). Important catalyst modifications include the replacement of [Cu(MeCN)4]OTf with a lower-cost Cu source, CuI, reduction of the ABNO loading to 0.05-0.3 mol%, and use of NMI as the only ligand/additive (i.e., without a need for MeObpy). Use of a high flash point solvent, N-methylpyrrolidone, enables safe operation in batch reactions with air as the oxidant. For continuous-flow applications compatible with elevated gas pressures, better performance is observed with acetonitrile as the solvent.
Structure-based virtual screening for insect ecdysone receptor ligands using MM/PBSA
Horoiwa, Shinri,Yokoi, Taiyo,Masumoto, Satoru,Minami, Saki,Ishizuka, Chiharu,Kishikawa, Hidetoshi,Ozaki, Shunsuke,Kitsuda, Shigeki,Nakagawa, Yoshiaki,Miyagawa, Hisashi
supporting information, p. 1065 - 1075 (2019/02/16)
The ecdysone receptor (EcR) is an insect nuclear receptor that is activated by the molting hormone, 20-hydroxyecdysone. Because synthetic EcR ligands disrupt the normal growth of insects, they are attractive candidates for new insecticides. In this study, the Molecular Mechanics/Poisson–Boltzmann Surface Area (MM/PBSA) method was used to predict the binding activity of EcR ligands. Validity analyses using 40 known EcR ligands showed that the binding activity was satisfactorily predicted when the ligand conformational free energy term was introduced. Subsequently, this MM/PBSA method was applied to structure-based hierarchical virtual screening, and 12 candidate compounds were selected from a database of 3.8 million compounds. Five of these compounds were active in a cell-based competitive binding assay. The most potent compound is a simple proline derivative with low micromolar binding activity, representing a valuable lead compound for further structural optimization.
CARBOCYCLIC PROLINAMIDE DERIVATIVES
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Paragraph 0128; 0129; 0130, (2018/04/11)
This invention is directed to novel carbocyclic prolinamide derivatives of Formula (I), and pharmaceutically acceptable salts, solvates, solvates of the salt and prodrugs thereof, useful in the prevention (e.g., delaying the onset of or reducing the risk
Cu(I)-catalyzed synthesis of dihydropyrimidin-4-ones toward the preparation of β- And β3-amino acid analogues
Rajagopal, Basker,Chen, Ying-Yu,Chen, Chun-Chi,Liu, Xuan-Yu,Wang, Huei-Ren,Lin, Po-Chiao
supporting information, p. 1254 - 1264 (2014/03/21)
A copper(I)-catalyzed synthesis of substituted dihydropyrimidin-4-ones from propargyl amides via the formation of ketenimine intermediate has been successfully developed; the synthesis afforded good isolated yields (80-95%). The mild reaction conditions at room temperature allow the reaction to proceed to completion in a few hours without altering the stereochemistry. Further, by involving a variety of reactive nucleophiles, the obtained substituted dihydropyrimidin-4-ones were elegantly transformed into the corresponding β- and β3-amino acid analogues.
Optimization of α-acylaminoketone ecdysone agonists for control of gene expression
Tice, Colin M.,Hormann, Robert E.,Thompson, Christine S.,Friz, Jennifer L.,Cavanaugh, Caitlin K.,Saggers, Jessica A.
, p. 1883 - 1886 (2007/10/03)
Fifteen new α-acylaminoketones were prepared by four different routes in an initial effort to optimize the potency of these compounds as ecdysone agonists. The compounds were assayed in mammalian cells expressing the ecdysone receptors from Bombyx mori (BmEcR) and Choristoneura fumiferana (CfEcR) for their ability to cause expression of a reporter gene downstream of an ecdysone response element. A new α-acylaminoketone was identified which had activity equal to that of the standard dibenzoylhydrazine ecdysone agonist GS-E in the assay based on CfEcR.
MORPHOLINE CONTAINING AMINO ACID DERIVATIVES
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, (2008/06/13)
Amino acid derivatives represented by formula STR1 wherein His represents an L-histidyl group, X represents a straight or branched alkoxy group having 1 to 7 carbon atoms, a straight or branched alkylamino group having 1 to 7 carbon atoms, a cycloalkyloxy
