Studies on several 7-substituted N,N-dimethyltryptamines
摘要:
Several 7-substituted derivatives of N,N-dimethyltryptamine (DMT) were prepared and evaluated in the rat fundus serotonin receptor assay and in a behavioral (discriminative stimulus) assay in rats. Both 7-Me- and 5-OMe-7-Me-DMT possess a higher pA2, and 5,7-(OMe)2-DMT a lower pA2, than that of DMT itself. Like DMT, all three of these compounds produce behavioral effects in rats which are similar to those of the hallucinogen 5-OMe-DMT. Although 7-ET- and 7-Br-DMT possess a higher serotonin receptor affinity than DMT, neither produce behavioral effects which parallel those of 5-OMe-DMT. In contrast, 6-Me-DMT and its 5-OMe derivative do not interact with the serotonin receptors in a competitive manner and are inactive in the discriminative stimulus assay.
phosphorylation-regulated kinase 1A (DYRK1A) is a potential drug target because of its role in the development of Down syndrome and Alzheimer’s disease. The selective DYRK1A inhibitor 10-iodo-11H-indolo[3,2-c]quinoline-6-carboxylic acid (KuFal194), a large, flat and lipophilic molecule, suffers from poor water solubility, limiting its use as chemical probe in cellular assays and animal models. Based on the structure
Indole‐based aryl sulfides target the cell wall of <i>Staphylococcus aureus</i> without detectable resistance
作者:Aditya G. Lavekar、Ritesh Thakare、Saima、Danish Equbal、Sidharth Chopra、Arun K. Sinha
DOI:10.1002/ddr.22123
日期:2024.2
Abstract
Sulfur‐containing classes of the scaffold “Arylthioindoles” have been evaluated for antibacterial activity; they demonstrated excellent potency against methicillin‐resistant Staphylococcus aureus (MRSA) as well as against vancomycin‐resistant strains and a panel of clinical isolates of resistant strains. In this study, we have elucidated the mechanism of action of lead compounds, wherein they target the cell wall of S. aureus. Further, S. aureus failed to develop resistance against two lead compounds tested in a serial passage experiment in the presence of the compounds over a period of 40 days. Both the compounds demonstrated comparable in vivo efficacy with vancomycin in a neutropenic mice thigh infection model. The results of these antibacterial activities emphasize the excellent potential of thioethers for developing novel antibiotics and may fill in as a target for the adjustment of accessible molecules to develop new powerful antibacterial agents with fewer side effects.
One-Pot Microwave-Assisted Synthesis of 3,4-Disubstituted 2-Quinolinones
作者:Chinh T. Bui
DOI:10.1080/00397911.2013.850095
日期:2014.4.18
An improved one-pot synthesis of 3,4-disubstituted 2-quinolinones is described. The condensation of substituted 2-aminobenzophenone (or 2-aminophenyl alkyl ketone) with acid chlorides was carried out in the presence of triethylamine (or NaH) under microwave reaction conditions (150oC, 200psi). The reactions were completed within minutes to produce 2-quinolinones in moderate to excellent yields and good purities.[Supplementary materials are available for this article. Go to the publisher's online edition of Synthetic Communications (R) for the following free supplemental resource(s): Full experimental and spectral details.]
GLENNON R. A.; SCHUBERT E.; JACYNO J. M.; ROSECRANS J. A., J. MED. CHEM., 1980, 23, NO 11, 1222-1226
作者:GLENNON R. A.、 SCHUBERT E.、 JACYNO J. M.、 ROSECRANS J. A.