87087-33-0Relevant academic research and scientific papers
Nickel-Catalyzed Alkyl-Alkyl Cross-Electrophile Coupling Reaction of 1,3-Dimesylates for the Synthesis of Alkylcyclopropanes
Chen, Pan-Pan,Hong, Xin,Jarvo, Elizabeth R.,McGinnis, Tristan M.,Sanford, Amberly B.,Thane, Taylor A.
supporting information, (2020/03/23)
Cross-electrophile coupling reactions of two Csp3-X bonds remain challenging. Herein we report an intramolecular nickel-catalyzed cross-electrophile coupling reaction of 1,3-diol derivatives. Notably, this transformation is utilized to synthesize a range of mono- and 1,2-disubstituted alkylcyclopropanes, including those derived from terpenes, steroids, and aldol products. Additionally, enantioenriched cyclopropanes are synthesized from the products of proline-catalyzed and Evans aldol reactions. A procedure for direct transformation of 1,3-diols to cyclopropanes is also described. Calculations and experimental data are consistent with a nickel-catalyzed mechanism that begins with stereoablative oxidative addition at the secondary center.
4-Aryl Pyrrolidines as a Novel Class of Orally Efficacious Antimalarial Agents. Part 1: Evaluation of 4-Aryl- N-benzylpyrrolidine-3-carboxamides
Meyers, Marvin J.,Liu, Jianguang,Xu, Jing,Leng, Fang,Guan, Jiantong,Liu, Zhijun,McNitt, Sarah A.,Qin, Limei,Dai, Linglin,Ma, Hongwei,Adah, Dickson,Zhao, Siting,Li, Xiaofen,Polino, Alex J.,Nasamu, Armiyaw S.,Goldberg, Daniel E.,Liu, Xiaorong,Lu, Yongzhi,Tu, Zhengchao,Chen, Xiaoping,Tortorella, Micky D.
supporting information, p. 3503 - 3512 (2019/03/29)
Identification of novel chemotypes with antimalarial efficacy is imperative to combat the rise of Plasmodium species resistant to current antimalarial drugs. We have used a hybrid target-phenotype approach to identify and evaluate novel chemotypes for malaria. In our search for drug-like aspartic protease inhibitors in publicly available phenotypic antimalarial databases, we identified GNF-Pf-4691, a 4-aryl-N-benzylpyrrolidine-3-carboxamide, as having a structure reminiscent of known inhibitors of aspartic proteases. Extensive profiling of the two terminal aryl rings revealed a structure-activity relationship in which relatively few substituents are tolerated at the benzylic position, but the 3-aryl position tolerates a range of hydrophobic groups and some heterocycles. Out of this effort, we identified (+)-54b (CWHM-1008) as a lead compound. 54b has EC50 values of 46 and 21 nM against drug-sensitive Plasmodium falciparum 3D7 and drug-resistant Dd2 strains, respectively. Furthermore, 54b has a long half-life in mice (4.4 h) and is orally efficacious in a mouse model of malaria (qd; ED99 ～ 30 mg/kg/day). Thus, the 4-aryl-N-benzylpyrrolidine-3-carboxamide chemotype is a promising novel chemotype for malaria drug discovery.
PHARMACEUTICALLY ACTIVE COMPOUNDS AS DAG-LIPASE INHIBITORS
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Paragraph 0112; 0117-0118, (2016/12/01)
The present invention relates to novel compounds which are highly selective inhibitors of diacylglycerol lipase α and β. These compounds are suitable for the treatment or prevention of disorders associated with, accompanied by or caused by increased 2-arachidonoylglycerol levels. Diacylglycerol lipase-α (alternative name: Sn1-specific diacylglycerol hydrolase a; DAGL-α) and -β are enzymes responsible for the biosynthesis of the endocannabinoid 2-arachidonoylglycerol. Selective and reversible inhibitors are required to study the function of DAGLs in neuronal cells in an acute and temporal fashion. The inventive ompounds are in particular suitable for the treatment of neurodegenerative diseases, inflammatory diseases, drug abuse and impaired energy balance, such as obesity.
Synthesis of key intermediate of phosphonosulfonates (BPH-652), 1-(3-iodopropyl)-3-phenoxy benzene
Lu, Min,Zhou, Shuwen,Guan, Jing,Xu, Xing,Fan,Xu, Defeng
, p. 7619 - 7621 (2015/02/02)
A convenient and efficient four-step synthesis of 1-(3-iodopropyl)-3-phenoxy benzene can be achieved by 3-phenoxybenzaldehyde and malonic acid in the presence of piperidine and pyridine to yield (E)-3-(3-phenoxyphenyl)-2-propenoic acid, esterification with methanol in the present of p -toluene sulfonic acid, reduction with sodium borohydride to give 3-(3-phenoxyphenyl)propan-1-ol and iodination of 3-(3-phenoxy phenyl) propan-1-ol using iodine and triphenylphosphine in the present of potassium iodide and imidazole and to afford the title compound in an overall yield of 55.6 %.
Synthesis and biological activity of new 3-hydroxy-3-methylglutaryl-CoA synthase inhibitors: 2-Oxetanones with a meta-substituent on the benzene ring in the side chain
Hashizume,Ito,Kanaya,Nagashima,Usui,Oshima,Kanao,Tomoda,Sunazuka,Kumagai,Omura
, p. 1272 - 1278 (2007/10/02)
Isosteric side chain analogs of 3a were synthesized and tested for inhibitory activities towards 3-hydroxy-3-methylglutaryl coenzyme A (HMG- CoA) synthase and upon cholesterol production in Hep G2 cells and in mouse liver. It became clear that the lipophi
