128923-93-3Relevant academic research and scientific papers
A green synthesis of biaryls in water catalyzed by palladium nanoparticles immobilized on N-amidinoglycine-functionalized iron oxide nanoparticles
Rafiee, Fatemeh,Mehdizadeh, Nasrin
, p. 295 - 300 (2018)
Fe3O4 nanoparticles were prepared by co-precipitation and coated with SiO2 following the St?ber process. N-Amidinoglycine amino acid was then covalently connected to provide an excellent ligand for the immobilization of Pd nanoparticles. The resulting material was characterized by FE-SEM, TEM, EDX, XRD, VSM and ICP-AES analysis. The Fe3O4@SiO2@N-amidinoglycine@Pd0 proved to be a highly active catalyst for the Suzuki coupling reactions of various aryl halides with substituted phenylboronic acids in water, giving the desired products in excellent yields for short reaction times. Moreover, this catalyst can be easily recovered by using an external magnet and directly reused for several times without significant loss of activity.
A one-pot protocol for the fluorosulfonation and Suzuki coupling of phenols and bromophenols, streamlined access to biaryls and terphenyls
Hu, Rui,Li, Xinmin,Ren, Changyue,Yuan, Zeli,Zhang, Hang,Zhang, Tingting
supporting information, p. 4748 - 4753 (2020/08/17)
A one-pot protocol for the fluorosulfation and Suzuki coupling of phenols is described. The tandem reaction proceeds efficiently at room temperature, and various biaryls and biaryl fluorosulfates were obtained in good to excellent yields. Furthermore, biaryl fluorosulfates were utilized as versatile building blocks for the preparation of terphenyls. The Royal Society of Chemistry 2020.
SUBSTITUTED BICYCLIC COMPOUNDS AS FARNESOID X RECEPTOR MODULATORS
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Page/Page column 182-183, (2020/08/28)
Disclosed are compounds of Formula (I): or a stereoisomer, a tautomer, or a salt or solvate thereof, wherein Q is C2-6 alkenyl or C2-6 alkynyl, each substituted with zero to 2 R1; and the other variables are as defined herein. These compounds modulate the activity of farnesoid X receptor (FXR), for example, as agonists. Also disclosed are pharmaceutical compositions comprising these compounds and methods of treating a disease, disorder, or condition associated with FXR dysregulation, such as pathological fibrosis, transplant rejection, cancer, osteoporosis, and inflammatory disorders, by using the compounds and pharmaceutical compositions.
SUBSTITUTED BICYCLIC COMPOUNDS AS FARNESOID X RECEPTOR MODULATORS
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Page/Page column 402; 403, (2020/08/28)
Disclosed are compounds of Formula (I) or a stereoisomer, a tautomer, or a salt or solvate thereof, wherein all the variables are as defined herein. These compounds modulate the activity of farnesoid X receptor (FXR), for example, as agonists. Also disclosed are pharmaceutical compositions comprising these compounds and methods of treating a disease, disorder, or condition associated with FXR dysregulation, such as pathological fibrosis, transplant rejection, cancer, osteoporosis, and inflammatory disorders, by using the compounds and pharmaceutical compositions.
Triazole carbene palladium metal coordination compound, preparation method and applications thereof
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Paragraph 0179-0183, (2020/01/03)
The invention relates to a triazole carbene palladium metal coordination compound, a preparation method and applications thereof, wherein the triazole carbene palladium metal coordination compound isprepared by using N-pyridyl triazole as a molecular skel
DIARYLUREAS AS CB1 ALLOSTERIC MODULATORS
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Paragraph 69; 72; 79, (2018/12/02)
The present invention provides novel diarylurea derivatives (compounds of formula (I)) and their uses. The compounds of the present invention are demonstrated to be allosteric modulators of the CB1 receptor, and therefore useful for the treatment of diseases and conditions mediated by CB1.
Novel Diarylurea Based Allosteric Modulators of the Cannabinoid CB1 Receptor: Evaluation of Importance of 6-Pyrrolidinylpyridinyl Substitution
Nguyen, Thuy,German, Nadezhda,Decker, Ann M.,Langston, Tiffany L.,Gamage, Thomas F.,Farquhar, Charlotte E.,Li, Jun-Xu,Wiley, Jenny L.,Thomas, Brian F.,Zhang, Yanan
, p. 7410 - 7424 (2017/09/22)
Allosteric modulators of the cannabinoid CB1 receptor have recently been reported as an alternative approach to modulate the CB1 receptor for therapeutic benefits. In this study, we report the design and synthesis of a series of diarylureas derived from PSNCBAM-1 (2). Similar to 2, these diarylureas dose-dependently inhibited CP55,940-induced intracellular calcium mobilization and [35S]GTP-γ-S binding while enhancing [3H]CP55,940 binding to the CB1 receptor. Structure-activity relationship studies revealed that the pyridinyl ring of 2 could be replaced by other aromatic rings and the pyrrolidinyl ring is not required for CB1 allosteric modulation. 34 (RTICBM-74) had similar potencies as 2 in all in vitro assays but showed significantly improved metabolic stability to rat liver microsomes. More importantly, 34 was more effective than 2 in attenuating the reinstatement of extinguished cocaine-seeking behavior in rats, demonstrating the potential of this diarylurea series as promising candidates for the development of relapse treatment of cocaine addiction.
Efficient phosphine ligands for the one-pot palladium-catalyzed borylation/Suzuki-Miyaura cross-coupling reaction
Chen, You,Peng, Hui,Pi, Yun-Xiao,Meng, Tong,Lian, Ze-Yu,Yan, Meng-Qi,Liu, Yan,Liu, Sheng-Hua,Yu, Guang-Ao
supporting information, p. 3236 - 3242 (2015/03/18)
We report the synthesis of 2-(anthracen-9-yl)-1H-inden-3-yl dicyclohexylphosphine and its use in palladium-catalyzed borylation/Suzuki-Miyaura cross-coupling reaction to prepare a variety of symmetrical and unsymmetrical biaryl compounds in excellent yield. This journal is
Biaryl and aryl ketone synthesis via Pd-catalyzed decarboxylase coupling of carboxylate salts with aryl triflates
Goossen, Lukas J.,Linder, Christophe,Rodriguez, Nuria,Lange, Paul P.
supporting information; experimental part, p. 9336 - 9349 (2010/04/03)
A bimetallic catalyst system has been developed that for the first time allows the decarboxylative crosscoupling of aryl and acyl carboxylates with aryl triflates. In contrast to aryl halides, these electrophiles give rise to non-coordinating anions as byproducts, which do not interfere with the decarboxylation step that leads to the generation of the carbon nucleophilic crosscoupling partner. As a result, the scope of carboxylate substrates usable in this transformation was extended from ortho-substituted or otherwise activated derivatives to a broad range of ortho-, meta-, and para-substituted aromatic carboxylates. Two alternative protocols have been optimized, one involving heating the substrates in the presence of CuI/1,10- phenanthroline (10-15 mol %) and PdI2/phosphine (23 mol%) in NMP for 1-24 h, the other involving CuI/l,10-phenanthroline (615mol%) and PdBr2/Tol-BINAP (2 mol % ) in NMP using microwave heating for 5-10 min. While most products are accessible using standard heating, the use of microwave irradiation was found to be beneficial especially for the conversion of non-activated carboxylates with functionalized aryl triflates. The synthetic utility of the transformation is demonstrated with 48 examples showing the scope and limitations of both protocols. In mechanistic studies, the special role of microwave irradiation is elucidated, and further perspectives of decarboxylase crosscouplings are discussed.
Cyclohexylcarbamic acid 3′- or 4′-substituted biphenyl-3-yl esters as fatty acid amide hydrolase inhibitors: Synthesis, quantitative structure-activity relationships, and molecular modeling studies
Mor, Marco,Rivara, Silvia,Lodola, Alessio,Plazzi, Pier Vincenzo,Tarzia, Giorgio,Duranti, Andrea,Tontini, Andrea,Piersanti, Giovanni,Kathuria, Satish,Piomelli, Daniele
, p. 4998 - 5008 (2007/10/03)
Fatty acid amide hydrolase (FAAH) is a promising target for modulating endocannabinoid and fatty acid ethanolamide signaling, which may have important therapeutic potential. We recently described a new class of O-arylcarbamate inhibitors of FAAH, includin
