[EN] TARGETED NITROXIDE COMPOUNDS AND THEIR USE IN TREATING FERROPTOSIS-RELATED DISEASES [FR] COMPOSÉS DE NITROXYDE CIBLÉS ET LEUR UTILISATION DANS LE TRAITEMENT DE MALADIES LIÉES À LA FERROPTOSE
Enantioselective synthesis of <scp>d</scp>-α-amino amides from aliphatic aldehydes
作者:Kenneth E. Schwieter、Jeffrey N. Johnston
DOI:10.1039/c5sc00064e
日期:——
Bromonitromethane is used in a phase transfer-catalysed enantioselective aza-Henry reaction, leading to D-amino amide bearing an alkyl chain.
溴硝基甲烷用于相转移催化的对映选择性氮杂-亨利反应,生成带有烷基链的 D-氨基酰胺。
Exploring dual electrophiles in peptide-based proteasome inhibitors: carbonyls and epoxides
作者:Bo-Tao Xin、Gerjan de Bruin、Martijn Verdoes、Dmitri V. Filippov、Gijs A. van der Marel、Herman S. Overkleeft
DOI:10.1039/c4ob00893f
日期:——
Peptide epoxyketones are potent and selective proteasome inhibitors.
肽环氧酮是有效且选择性的蛋白酶体抑制剂。
Enantioselective Mannich Reaction of β-Keto Esters with Aromatic and Aliphatic Imines Using a Cooperatively Assisted Bifunctional Catalyst
作者:Antti J. Neuvonen、Petri M. Pihko
DOI:10.1021/ol5025025
日期:2014.10.3
An efficient urea-enhanced thiourea catalyst enables the enantioselective Mannichreaction between β-keto esters and N-Boc-protected imines under mild conditions and minimal catalyst loading (1–3 mol %). Aliphatic and aromatic substituents are tolerated on both reaction partners, affording the products in good enantiomeric purity. The corresponding β-amino ketones can readily be accessed via decarboxylation
Asymmetric Aminalization via Cation-Binding Catalysis
作者:Sang Yeon Park、Yidong Liu、Joong Suk Oh、Yoo Kyung Kweon、Yong Bok Jeong、Mengying Duan、Yu Tan、Ji-Woong Lee、Hailong Yan、Choong Eui Song
DOI:10.1002/chem.201703800
日期:2018.1.24
Asymmetric cation‐binding catalysis, in principle, can generate “chiral” anionic nucleophiles, where the counter cations are coordinated within chiral environments. Nitrogen nucleophiles are intrinsically basic, therefore, its use as nucleophiles is often challenging and limiting the scope of the reaction. Particularly, a formation of configurationally labile aminal centers with alkyl substituents
Carbonylative C−C Bond Activation of Electron-Poor Cyclopropanes: Rhodium-Catalyzed (3+1+2) Cycloadditions of Cyclopropylamides
作者:Andrew G. Dalling、Takayuki Yamauchi、Niall G. McCreanor、Lydia Cox、John F. Bower
DOI:10.1002/anie.201811460
日期:2019.1.2
Rh‐catalyzed carbonylative C−C bond activation of cyclopropylamides generates configurationally stable rhodacyclopentanones that engage tethered alkenes in (3+1+2) cycloadditions. These studies provide the first examples of multicomponent cycloadditions that proceed through C−C bond activation of “simple” electron poor cyclopropanes.