[EN] 2-AMINO-7A-PHENYL-3,4,4A,5,7,7A-HEXAHYDROFURO[3,4-B]PYRIDINES AS BACE1 INHIBITORS [FR] 2-AMINO-7A-PHÉNYL-3,4,4A,5,7,7A-HEXAHYDROFURO[3,4-B]PYRIDINES COMME INHIBITEURS DE BACE1
Preparation and biological evaluation of BACE1 inhibitors: Leveraging trans-cyclopropyl moieties as ligand efficient conformational constraints
作者:Leonard L. Winneroski、Jon A. Erickson、Steven J. Green、Jose E. Lopez、Stephanie L. Stout、Warren J. Porter、David E. Timm、James E. Audia、Mario Barberis、James P. Beck、Leonard N. Boggs、Anthony R. Borders、Robert D. Boyer、Richard A. Brier、Erik J. Hembre、Jörg Hendle、Pablo Garcia-Losada、Jose Miguel Minguez、Brian M. Mathes、Patrick C. May、Scott A. Monk、Zoran Rankovic、Yuan Shi、Brian M. Watson、Zhixiang Yang、Dustin J. Mergott
DOI:10.1016/j.bmc.2019.115194
日期:2020.1
reported the fragment-based discovery of LY2811376, the first BACE1 inhibitor reported to demonstrate robust reduction of human CSF Aβ in a Phase I clinical trial. We also reported on the discovery of LY2886721, a potent BACE1 inhibitor that reached phase 2 clinical trials. Herein we describe the preparation and structureactivityrelationships (SAR) of a series of BACE1 inhibitors utilizing trans-cyclopropyl
Cross-metathesis of allyl halides with olefins bearing amide and ester groups
作者:Jeong In Yun、Hyoung Rae Kim、Sang Kyum Kim、Deukjoon Kim、Jongkook Lee
DOI:10.1016/j.tet.2011.11.064
日期:2012.1
generation catalyst (III) efficiently promotes these processes with olefins bearing a Weinreb amide group. Lastly, a reinvestigation of the ester group tolerance of the allyl halide CM with unsaturated esters demonstrated that III serves as an efficient catalyst for these reactions.
Synthesis of BACE Inhibitor LY2886721. Part I. An Asymmetric Nitrone Cycloaddition Strategy
作者:Stanley P. Kolis、Marvin M. Hansen、Enver Arslantas、Lukas Brändli、Jonas Buser、Amy C. DeBaillie、Andrea L. Frederick、David W. Hoard、Adrienne Hollister、Dominique Huber、Thomas Kull、Ryan J. Linder、Thomas J. Martin、Rachel N. Richey、Alfred Stutz、Michael Waibel、Jeffrey A. Ward、Alexandru Zamfir
DOI:10.1021/op500351q
日期:2015.9.18
A scalable, asymmetric synthesis of (3aS,6aS)-6a-(5-bromo-2-fluorophenyl)-1-((R)-1-phenylpropyl)tetrahydro-1H,3H-furo[3,4-c]isoxazole, a key intermediate in the synthesis of LY2886721, is reported. Highlights of the synthesis include the development of an asymmetric [3 + 2] intramolecular cycloaddition facilitated by trifluoroethanol, and the development of a new synthesis of (R)-N-(1-phenylpropyl)hydroxylamine
的可扩展性,不对称合成(3如,6为)-6一个- (5-溴-2-氟苯基)-1 - (([R)-1-苯基丙基)四氢ħ,3 ħ -呋喃并[3,报道了4- c ]异恶唑,其是LY2886721合成中的关键中间体。合成的重点包括由三氟乙醇促进的不对称[3 + 2]分子内环加成反应的发展,以及新的(R)-N-(1-苯基丙基)羟胺甲苯磺酸酯合成的发展,该合成过程通过p-茴香醛亚胺,避免形成有毒的氰化氢气体副产物。合成过程分四个步骤进行,提供了36%的总收率的产品。
A convergent approach toward phoslactomycins and leustroducsins
作者:Valérie Druais、Michael J. Hall、Camilla Corsi、Sebastian V. Wendeborn、Christophe Meyer、Janine Cossy
DOI:10.1016/j.tet.2010.05.050
日期:2010.8
reported. A formalsynthesis of phoslactomycin B was achieved in which the key steps are a [2,3]-Wittig rearrangement to control the C4 and C5 stereocenters, a diastereoselective addition of an acetylenic Grignard reagent to an α-alkoxy ketone to create the C8 tertiary alcohol, and a relay ring-closing metathesis to construct the α,β-unsaturated δ-lactone. In this approach, all the stereocenters originate