Synthesis and methemoglobinemia-inducing properties of benzocaine isosteres designed as humane rodenticides
摘要:
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. (C) 2014 Elsevier Ltd. All rights reserved.
Synthesis and methemoglobinemia-inducing properties of benzocaine isosteres designed as humane rodenticides
摘要:
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. (C) 2014 Elsevier Ltd. All rights reserved.
[EN] N- (HETERO)ARYL, 2- (HETERO)ARYL-SUBSTITUTED ACETAMIDES FOR USE AS WNT SIGNALING MODULATORS<br/>[FR] ACÉTAMIDES À SUBSTITUTION N-(HÉTÉRO)ARYL, 2-(HÉTÉRO)ARYLE POUR UNE UTILISATION EN TANT QUE MODULATEURS DE LA VOIE DE SIGNALISATION WNT
申请人:IRM LLC
公开号:WO2010101849A1
公开(公告)日:2010-09-10
The present invention relates to compounds of formulae 1 and 2 and methods for modulating the Wnt signaling pathway using these compounds, wherein A1, A2, B, Y and Z all represent rings.