26060-30-0Relevant articles and documents
Synthesis and methemoglobinemia-inducing properties of benzocaine isosteres designed as humane rodenticides
Conole, Daniel,Beck, Thorsten M.,Jay-Smith, Morgan,Tingle, Malcolm D.,Eason, Charles T.,Brimble, Margaret A.,Rennison, David
supporting information, p. 2220 - 2235 (2014/04/17)
A number of isosteres (oxadiazoles, thiadiazoles, tetrazoles and diazines) of benzocaine were prepared and evaluated for their capacity to induce methemoglobinemia - with a view to their possible application as humane pest control agents. It was found that an optimal lipophilicity for the formation of methemoglobin (metHb) in vitro existed within each series, with 1,2,4-oxadiazole 3 (metHb% = 61.0 ± 3.6) and 1,3,4-oxadiazole 10 (metHb% = 52.4 ± 0.9) demonstrating the greatest activity. Of the 5 candidates (compounds 3, 10, 11, 13 and 23) evaluated in vivo, failure to induce a lethal end-point at doses of 120 mg/kg was observed in all cases. Inadequate metabolic stability, particularly towards hepatic enzymes such as the CYPs, was postulated as one reason for their failure.
Agonists for the adenosine A1 receptor with tunable residence time. a case for nonribose 4-amino-6-aryl-5-cyano-2-thiopyrimidines
Louvel, Julien,Guo, Dong,Agliardi, Marta,Mocking, Tamara A. M.,Kars, Roland,Pham, Tan Phát,Xia, Lizi,De Vries, Henk,Brussee, Johannes,Heitman, Laura H.,Ijzerman, Adriaan P.
supporting information, p. 3213 - 3222 (2014/05/20)
We report the synthesis and evaluation of previously unreported 4-amino-6-aryl-5-cyano-2-thiopyrimidines as selective human adenosine A 1 receptor (hA1AR) agonists with tunable binding kinetics, this without affecting their nanomolar affinity for the target receptor. They show a very diverse range of kinetic profiles (from 1 min (compound 52) to 1 h (compound 43)), and their structure-affinity relationships (SAR) and structure-kinetics relationships (SKR) were established. When put in perspective with the increasing importance of binding kinetics in drug discovery, these results bring new evidence of the consequences of affinity-only driven selection of drug candidates, that is, the potential elimination of slightly less active compounds that may display preferable binding kinetics.
Sulfonic acid functionalized nano Γ-Al 2O 3: A new, efficient, and reusable catalyst for synthesis of thioamides
Yin, Zhikui,Zheng, Bin,Ai, Fang
, p. 1412 - 1420 (2013/10/08)
Sulfonic acid functionalized nano γ-Al2O3 is easily prepared by the reaction of nano γ-Al2O3 with 1,3-propane sulfone. This reagent can be used as an eficient catalyst for the synthesis of thioamides. This new method consistently has the advantages of excellent yields and short reaction times. Further, the catalyst can be recovered for several times.