Samarium Diiodide Promoted Generation and Asymmetric Hydroxyalkylation of N,O-Diprotected (3S)-3-Pyrrolidinol 2-Carbanions
摘要:
The N,O-diprotected chiral nonracemic 2-pyridyl 3-pyrrolidinol-2-yl sulfide 5a undergoes efficient SMl(2) mediated reduction to give the N,O-diprotected 3-pyrrolidinol 2-carbanion intermediate D, which reacted under Barbier-type conditions with ketones and alclehydes to afford the protected N-alpha-hydroxyalkyl-3-pyrrolidines 10b-h with excellent diastereoselectivity at the newly formed chiral center in the pyrrolidine ring. Application of the present method led to the formal asymmetric syntheses of (2R,3S)-2-hydroxymethyl-3-pyrrolidinol (2) and (2S,3S)-3hydroxyproline (12).
本文描述了一种有效的按比例放大合成的强效负构构谷氨酸盐N2B(GluN2B)抑制剂1(BMS-986169),该方法依赖于立体特异性S N 2烷基化策略及其稳健的制备其磷酸盐前药28( (BMS-986163)使用POCl 3来自父代1。使用双(2-甲氧基乙基)氨基三氟化硫(Deoxo-Fluor)的脱氧氟化反应也用于立体定向引入氟取代基。已证明优化的途径可提供适用于体内毒理学研究的API。
The disclosure generally relates to compounds of formula I, including their salts, as well as compositions and methods of using the compounds. The compounds are ligands of the NR2B receptor and may be useful for the treatment of various disorders of the central nervous system.
TMSOTf-mediated approach to 1,3-oxazin-2-one skeleton through one-pot successive reduction-[4 + 2] cyclization process of imides with ynamides
作者:Chen-Chen Zhang、Zhi-Peng Huo、Mei-Lin Tang、Yong-Xi Liang、Xun Sun
DOI:10.1016/j.tetlet.2021.152946
日期:2021.3
A one-pot approach to access functionalized 1,3-oxazin-2-one skeleton has been developed through successive reduction and subsequent [4 + 2] cyclization process of N-Boc lactams with ynamides by TMSOTf. As a result, a number of five to seven membered ring fused bicyclic [1,2-c][1], [3]oxazin-1-ones 12a-m and tricyclic derivatives 13a-f were obtained in moderate to excellent yields with excellent regioselectivities
[EN] 4 -AMINO -7,8- DIHYDROPYRIMIDO [5, 4 - F] [1, 4] OXAZEPIN- 5 ( 6H) - ONE BASED DGAT1 INHIBITORS<br/>[FR] INHIBITEURS DE DGAT1 À BASE DE 4-AMINO-7,8-DIHYDROPYRIMIDO[5,4,F][1,4]OXAZÉPIN-5(6H)-ONE
申请人:ASTRAZENECA AB
公开号:WO2011121350A1
公开(公告)日:2011-10-06
DGAT-1 inhibitor compounds of formula (I), pharmaceutically-acceptable salts and pro- drugs thereof are described, together with pharmaceutical compositions, processes for making them and their use in treating, for example, diabetes and obesity wherein, R1, R2, R3, R4, X2, q, Y1, Y2, n, Q and Z are as defined in the description.
[EN] ARYLOXYACETYLINDOLES AND ANALOGS AS ANTIBIOTIC TOLERANCE INHIBITORS<br/>[FR] ARYLOXYACÉTYLINDOLES ET ANALOGUES EN TANT QU'INHIBITEURS DE TOLÉRANCE AUX ANTIBIOTIQUES
申请人:SPERO THERAPEUTICS INC
公开号:WO2016112088A1
公开(公告)日:2016-07-14
The disclosure provides compounds and pharmaceutical compositions of aryloxyacetylindoles compounds and analogs useful for treating chronic and acute bacterial infections. Certain of the compounds are compounds of general Formula (I) (I) or a pharmaceutically acceptable salt or prodrug thereof. Certain compounds of this disclosure are MvfR inhibitors. MvfR inhibitors reduce the formation of antibiotic tolerant bacterial strains and are useful for treating Gram-negative bacterial infections and reducing the virulence of Pseudomonas aeruginosa. Methods of treating bacterial infections in a subject, including Pseudomonas aeruginosa infections, are also provided by the disclosure.
The present invention relates to compounds that are Nrf2 activators. The compounds have the structural formula I defined herein. The present invention also relates to processes for the preparation of these compounds, to pharmaceutical compositions comprising them, and to their use in the treatment of diseases or disorders associated with Nrf2 activation.