108052-76-2Relevant academic research and scientific papers
Investigation of the Stereoselective Synthesis of the Indane Dimer PH46A, a New Potential Anti-inflammatory Agent
Cumming, Graham R.,Zhang, Tao,Scalabrino, Gaia,Frankish, Neil,Sheridan, Helen
, p. 1972 - 1979 (2017)
PH46A, belonging to a class of 1,2-Indane dimers, has been developed by our research group as a potential therapeutic agent for the treatment of inflammatory and autoimmune diseases. The initial synthetic route to PH46A gave a low overall yield, due in la
Design, synthesis and structure?activity relationship studies of GPR40 agonists containing amide linker
Chen, Tingting,Ning, Mengmeng,Ye, Yangliang,Wang, Kai,Leng, Ying,Shen, Jianhua
, p. 175 - 194 (2018)
Free fatty acid receptor 1 (FFAR1/GPR40) attracted significant attention as a potential target for developing novel antidiabetic drugs because of its unique mechanism in glucose homeostasis. Several reports have expressed concerns about central nervous system (CNS) penetration of GPR40 agonists, which is possibly attributed to their high lipophilicity and low total polar surface area. Herein, we report our efforts to improve the physicochemical properties and pharmacokinetic profiles of LY2881835, a GPR40 agonist that had undergone Phase I clinical trial, through a series of structural optimizations. We identified an orally efficacious compound, 15k, which possessed increased plasma exposure, prolonged half-life and reduced CNS exposure and liver to plasma distribution ratio compared with LY2881835. 15k is a potentially valuable lead compound in the development of safe and efficacious GPR40-targeted drugs to treat type 2 diabetes mellitus.
Novel nicotinoid structures for covalent modification of wood: An environmentally friendly way for its protection against insects
Acker, Sophie,Kaufmann, Dieter E.,Namyslo, Jan C.,Plarre, Rudy,S?ftje, Martin
, p. 15726 - 15733 (2020/05/13)
Timber is constantly exposed to environmental influences under outdoor conditions which limits its lifetime and usability. In order to counteract the damaging processes caused by insects, we have developed a novel and more environmentally friendly method to protect wood materials via covalent modification by organic insecticides. Starting with an important class of synthetic insecticides which are derived from the natural insecticide nicotine, various new carboxylic acid derivatives of imidacloprid were made accessible. These activated neonicotinoids were utilized for the chemical modification of wood hydroxy groups. In contrast to conventional wood preservation methods in which biocides are only physically bound to the surface for a limited time, the covalent fixation of the preservative guarantees a permanent effect against wood pests, demonstrated in standardized biological tests. Additionally, the environmental interaction caused by non-bound neonicotinoids is significantly reduced, since both, a smaller application rate is required and leaching of the active ingredient is prevented. By minimizing the pest infestation, the lifetime of the material increases while preserving the natural appearance of the material.
Acid-Stable Ester Linkers for the Solid-Phase Synthesis of Immobilized Peptides
Budě?ínsky, Milo?,Jirá?ek, Ji?í,Mitrová, Katarína,Pícha, Jan
, p. 1297 - 1306 (2020/07/04)
A series of N-terminally Fmoc-protected linkers of the general formula Fmoc-X?CO?O?Y?COOH have been prepared, where X is ?NH?CH2?CH2- or -p-(aminomethyl)phenyl- and Y is ?(CH2)n? (n is 1 or 4) or -p-(methyl)phenyl-. These linkers can easily be covalently attached via their C-terminal carboxyl group to a resin bearing a free amino group. After cleavage of the N-terminal Fmoc group, the linkers can be extended by standard solid-phase peptide synthesis techniques. These ester linkers are acid-stable and resistant to the base-mediated diketopiperazine formation that often occurs during the synthesis of ester-bound peptides; they are stable at neutral pH in aqueous buffers for days but can be effectively cleaved with 0.1 m NaOH or aq. ammonia within minutes or hours, respectively. These properties make these ester handles well suited for use as linkers for the solid-phase peptide synthesis of immobilized peptides when the stable on-resin immobilization of the peptides and the testing of their biological properties in aqueous buffers at neutral pH are necessary.
3-(1-OXOISOINDOLIN-2-YL)PIPERIDINE-2,6-DIONE DERIVATIVES AND USES THEREOF
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Paragraph 0857; 0859, (2019/03/08)
The present disclosure provides a compound of Formula (I′): or a pharmaceutically acceptable salt, hydrate, solvate, prodrug, stereoisomer, or tautomer thereof, wherein R1, R2, Rx, X1, n, n1, and q are as defined herein, and methods of making and using same.
A class of GPR40 agonist compounds with amide structure, and uses thereof
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Paragraph 0115; 0116; 0118; 0121, (2019/05/02)
The present invention relates to a class of amide compounds with a novel structure, and a pharmaceutical composition thereof, wherein the structure of the amide compound is represented by a general formula (I). According to the present invention, the amide compound (I) can regulate GPR40 activity, and can be used for GPR40 activity related diseases such as diabetes and metabolic syndrome. The formula I is defined in the specification.
Picolinamide oligomers, preparation method and applications thereof
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Paragraph 0047; 0052, (2018/08/28)
The invention belongs to the technical field of membrane separation, and more specifically relates to picolinamide oligomers, a preparation method and applications thereof. The picolinamide oligomerscomprise the following characteristics: 1. the oligomers
Electrophilic Zinc Homoenolates: Synthesis of Cyclopropylamines from Cyclopropanols and Amines
Mills, L. Reginald,Barrera Arbelaez, Luis Miguel,Rousseaux, Sophie A. L.
, p. 11357 - 11360 (2017/08/30)
Metal homoenolates, produced via C-C bond cleavage of cyclopropanols, have been extensively investigated as nucleophiles for the synthesis of β-substituted carbonyl derivatives. Herein, we demonstrate that zinc homoenolates can react as carbonyl-electrophiles in the presence of nucleophilic amines to yield highly valuable trans-cyclopropylamines in good yields and high diastereoselectivities. GSK2879552, a lysine demethylase 1 inhibitor currently in clinical trials for the treatment of small cell lung carcinoma, was synthesized using this strategy.
New calix[4]arene-cored peripherally functionalized dendrimers: Synthesis and conformational characteristics
Paraskevopoulos, Georgios,Alivertis, Dimitrios,Theodorou, Vassiliki,Skobridis, Konstantinos
, p. 593 - 603 (2015/06/02)
Abstract New calixarene-based dendrimers, containing calix[4]arene as the core and different generations of Fréchet-type poly(benzyl ether) dendrons as building blocks, which possess either Br-atoms or COOtBu groups at their surface were synthe
