An efficient and practical method for the synthesis of medicinally important acridines from readily available o-aminoaryl ketones and arylboronic acids was developed using copper(II)-mediated relay reactions that involve intermolecular Chan–Lam cross-coupling and subsequent intramolecular Friedel–Crafts-type reactions. A sole promoter, i.e., Cu(OTf)2, was used; therefore, strongly acidic and basic
[EN] CYCLOHEXYL-AZETIDINYL ANTAGONISTS OF CCR2<br/>[FR] ANTAGONISTES DU CCR2 À BASE DE CYCLOHEXYL-AZÉTIDINYLE
申请人:JANSSEN PHARMACEUTICA NV
公开号:WO2011159854A1
公开(公告)日:2011-12-22
The present invention comprises compounds of Formula (I). Wherein: R1, R2, R4, J, Q, and A are as defined in the specification. The invention also comprises a method of preventing, treating or ameliorating a syndrome, disorder or disease, wherein said syndrome, disorder or disease is type II diabetes, obesity and asthma. The invention also comprises a method of inhibiting CCR2 activity in a mammal by administration of a therapeutically effective amount of at least one compound of Formula (I).
A transition‐metal‐free reaction of o‐aminoacetophenone N‐tosylhydrazone and CO2 has been developed, leading to a series of 1,4‐dihydro‐2H‐3,1‐benzoxazin‐2‐ones in moderate to good yields. This procedure proceeds with the sequential fixation of CO2 by amino leading to carbamic acid and the intra‐ molecular insertion of hydroxyl to carbene.
已开发出邻氨基苯乙酮N-甲苯磺酰and与CO 2的无过渡金属反应,从而以中等至良好的产率产生了一系列1,4-二氢-2 H -3,1-苯并恶嗪-2-酮。该过程通过氨基依次固定CO 2导致氨基甲酸和分子内将羟基插入卡宾而进行。
Synthesis, Structure, Carbohydrate Enzyme Inhibition, Antioxidant Activity, In Silico Drug-Receptor Interactions and Drug-Like Profiling of the 5-Styryl-2-Aminochalcone Hybrids
作者:Malose J. Mphahlele、Emmanuel Ndubuisi Agbo、Yee Siew Choong
DOI:10.3390/molecules26092692
日期:——
2-amino-5-(3/4-fluorostyryl)acetophenones were prepared and reacted with benzaldehydederivatives to afford the corresponding 5-styryl-2-aminochalcone hybrids. The trans geometry of the styryl and α,β-unsaturated carbonyl arms, and the presence of NH…O intramolecular hydrogen bond were validated using 1H-NMR and X-ray data. The 2-amino-5-styrylacetophenones and their 5-styryl-2-aminochalcone derivatives were screened
[EN] BIOSYNTHETICALLY GENERATED PYRROLINE-CARBOXY-LYSINE AND SITE SPECIFIC PROTEIN MODIFICATIONS VIA CHEMICAL DERIVATIZATION OF PYRROLINE-CARBOXY-LYSINE AND PYRROLYSINE RESIDUES<br/>[FR] PYRROLINE-CARBOXY-LYSINE PRODUITE PAR BIOSYNTHÈSE ET MODIFICATIONS DE PROTÉINES SPÉCIFIQUES DE SITE OBTENUES PAR UNE DÉRIVATISATION CHIMIQUE DE PYRROLINE-CARBOXY-LYSINE ET DE RÉSIDUS DE PYRROLYSINE
申请人:IRM LLC
公开号:WO2010048582A1
公开(公告)日:2010-04-29
Disclosed herein is pyrroline-carboxy-lysine (PCL), a pyrrolysine analogue, which is a natural, biosynthetically generated amino acid, and methods for biosynthetically generating PCL. Also disclosed herein are proteins, polypeptides and peptides that have PCL incorporated therein and methods for incorporating PCL into such proteins, polypeptides and peptides. Also disclosed herein is the site-specific derivatization of proteins, polypeptides and peptides having PCL or pyrrolysine incorporated therein. Also disclosed herein is the crosslinking of proteins, polypeptides and peptides having PCL or pyrrolysine incorporated therein.