将基于可再生木质素的平台化学品转化为具有附加值的含氮化合物是木质素利用的新兴策略。然而,这些平台化学品上的多反应位点使得控制产品选择性具有挑战性,从而导致成功有限。在这项工作中,我们开发了愈创木酚(一种典型的基于木质素的平台化学品)与胺和 H 2的还原偶联合成甲氧基官能化的环己胺。结果表明,Pd/C是这种反应的一种非常有效的催化剂,可以得到高产率的目标产物。值得注意的是,该方法可用于各种愈创木酚类似物与胺的还原偶联,以高产率合成烷氧基官能化的环己胺。机理研究表明,该反应是通过生成 2-甲氧基环己酮及其随后的还原胺化而发生的。
Palladium-Catalyzed Formal Cross-Coupling of Diaryl Ethers with Amines: Slicing the 4-<i>O</i>
-5 Linkage in Lignin Models
作者:Huiying Zeng、Dawei Cao、Zihang Qiu、Chao-Jun Li
DOI:10.1002/anie.201712211
日期:2018.3.26
ether bonds (α‐O‐4, β‐O‐4, and 4‐O‐5 linkages) and other C−C bonds. Among the ether bonds, the bond dissociation energy of the 4‐O‐5 linkage is the highest and the most challenging to cleave. To date, 4‐O‐5 ether linkage model compounds have been cleaved to obtain phenol, cyclohexane, cyclohexanone, and cyclohexanol. The first example of direct formal cross‐coupling of diaryl ether 4‐O‐5 linkage models
[EN] N-(PHENYLSULFONYL)BENZAMIDES AND RELATED COMPOUNDS AS BCL-2 INHIBITORS<br/>[FR] N-(PHÉNYLSULFONYL) BENZAMIDES ET COMPOSÉS APPARENTÉS EN TANT QU'INHIBITEURS DE BCL-2
申请人:UNIV MICHIGAN REGENTS
公开号:WO2018027097A1
公开(公告)日:2018-02-08
The present disclosure provides compounds having Formula I-A: and the pharmaceutically acceptable salts and solvates thereof, wherein A, X1 , X2, X3 R1a, R1b E, and = are as defined as set forth in the specification. The present disclosure also provides compounds of Formula I-A for use to treat a disease, disorder, or condition responsive to Bc1-2 protein inhibition such as cancer.
[EN] INDOLE DERIVATIVES AS ALPHA-1 -ANTITRYPSIN MODULATORS FOR TREATING ALPHA-1 -ANTITRYPSIN DEFICIENCY (AATD)<br/>[FR] DÉRIVÉS D'INDOLE UTILISÉS EN TANT QUE MODULATEURS D'ALPHA-1-ANTITRYPSINE POUR TRAITER UNE DÉFICIENCE EN ALPHA-1-ANTITRYPSINE (AATD)
申请人:VERTEX PHARMA
公开号:WO2021203023A1
公开(公告)日:2021-10-07
Indole derivatives as alpha-l-antitrypsin modulators for treating alpha-l-antitrypsin deficiency (AATD).