Design, synthesis, and biological activity of novel PPARγ ligands based on rosiglitazone and 15d-PGJ2
摘要:
To develop novel PPAR gamma ligands, we synthesized thirteen 3-{4-(2-aminoethoxy)phenyl}propanoic acid derivatives, which are designed based on the structures of rosiglitazone and 15d-PGJ(2). Among these compounds, compound 9 was found to be as potent as rosiglitazone in a binding assay and a preadipocyte differentiation test. Molecular modeling suggested that the nonyl group of 9 interacted with hydrophobic amino acid residues constructing the hydrophobic region of PPAR gamma protein where the alkyl chain of 15d-PGJ(2) is expected to be located. (c) 2005 Elsevier Ltd. All rights reserved.
established for the preparation of phenothiazines in good yields by two routes, starting from 2-iodoanilines and 2-bromobenzenethiol and from aryl ortho-dihalides and o-aminobenzenethiols, by conducting the reaction at 90 °C in poly(ethylene glycol)-100 (PEG-100). In addition, the catalyst system was useful for promoting direct arylation of various aryl amines, aliphatic amines, and aqueous ammonia. The simple
Derivatives of 4-acetyl-3-hydroxy-2-alkyl-phenoxycarboxylic acids
申请人:Hoffmann-La Roche Inc.
公开号:US04672066A1
公开(公告)日:1987-06-09
The invention relates to compounds of the formula ##STR1## wherein R is hydrogen or lower alkyl, Y is alkylene; Z is alkylene, ##STR2## the asterisk herein denotes bonding to the substituted acetophenone; R.sub.2 is hydrogen or lower alkoxy; and n is an integer of 1 to 3; A is ##STR3## and HET is a 5-or 6- membered nitrogen containing heterocyclic group, and their acid addition salts. The compounds of formula I of the invention are useful for the treatment of allergic conditions, such as, asthma and cardiovascular diseases, such as, angina and arrhythmias.
A cationic Ir(I)–tolBINAP complex catalyzed an enantioselective C–C bond formation, which was initiated by secondary sp3 C–H bondcleavage adjacent to nitrogen atom. A wide variety of 2-(alkylamino)pyridines and alkenes were selectively transformed into the corresponding chiral amines with moderate to almost perfect enantiomeric excesses. Alkynes were also investigated as coupling partners. The effect
Pyridine mediated transition-metal-free direct alkylation of anilines using alcohols <i>via</i> borrowing hydrogen conditions
作者:Rajagopal Pothikumar、Venugopal T Bhat、Kayambu Namitharan
DOI:10.1039/d0cc05912a
日期:——
azaaromatics as efficient biomimetic hydrogen shuttles for a transition-metal-free direct N-alkylation of aryl and heteroaryl amines using a variety of benzylic and straight chain alcohols. Mechanistic studies including deuteriumlabeling and the isolation of dihydro-intermediates of the benzannulated pyridine confirmed the role of pyridine and a borrowing hydrogen process operating in these reactions