A journey from benzanilides to dithiobenzanilides: Synthesis of selective spasmolytic compounds
摘要:
A series of dithiobenzanilide derivatives was synthesized and each compound was evaluated for its ability to reduce KCl-induced contractions of smooth muscle preparations of the guinea pig. Starting from a recent publication describing benzanilide derivatives as antispasmodic agents, structure-activity guided synthesis was performed to obtain compounds with improved spasmolytic activity. First, compounds with two amide bonds were designed and second, both amide oxygens were replaced by two sp(2) sulfur atoms resulting in dithiobenzanilide derivatives. The most potent antispasmodic dithiobenzanilide 19 showed improved activity with an IC50 value of 0.4 mu M. Moreover, the study also demonstrated that these active compounds were able to antagonize the effect of spasmogens like acetylcholine and phenylephrine and that the activity is not mediated by activation of ATP-dependent potassium channels (K-ATP-channels) or inhibition of endothelial nitric oxide synthase (eNOS). (C) 2010 Elsevier Ltd. All rights reserved.
A journey from benzanilides to dithiobenzanilides: Synthesis of selective spasmolytic compounds
摘要:
A series of dithiobenzanilide derivatives was synthesized and each compound was evaluated for its ability to reduce KCl-induced contractions of smooth muscle preparations of the guinea pig. Starting from a recent publication describing benzanilide derivatives as antispasmodic agents, structure-activity guided synthesis was performed to obtain compounds with improved spasmolytic activity. First, compounds with two amide bonds were designed and second, both amide oxygens were replaced by two sp(2) sulfur atoms resulting in dithiobenzanilide derivatives. The most potent antispasmodic dithiobenzanilide 19 showed improved activity with an IC50 value of 0.4 mu M. Moreover, the study also demonstrated that these active compounds were able to antagonize the effect of spasmogens like acetylcholine and phenylephrine and that the activity is not mediated by activation of ATP-dependent potassium channels (K-ATP-channels) or inhibition of endothelial nitric oxide synthase (eNOS). (C) 2010 Elsevier Ltd. All rights reserved.
A journey from benzanilides to dithiobenzanilides: Synthesis of selective spasmolytic compounds
作者:Gerda Brunhofer、Walter H. Granig、Christian R. Studenik、Thomas Erker
DOI:10.1016/j.bmc.2010.11.043
日期:2011.1
A series of dithiobenzanilide derivatives was synthesized and each compound was evaluated for its ability to reduce KCl-induced contractions of smooth muscle preparations of the guinea pig. Starting from a recent publication describing benzanilide derivatives as antispasmodic agents, structure-activity guided synthesis was performed to obtain compounds with improved spasmolytic activity. First, compounds with two amide bonds were designed and second, both amide oxygens were replaced by two sp(2) sulfur atoms resulting in dithiobenzanilide derivatives. The most potent antispasmodic dithiobenzanilide 19 showed improved activity with an IC50 value of 0.4 mu M. Moreover, the study also demonstrated that these active compounds were able to antagonize the effect of spasmogens like acetylcholine and phenylephrine and that the activity is not mediated by activation of ATP-dependent potassium channels (K-ATP-channels) or inhibition of endothelial nitric oxide synthase (eNOS). (C) 2010 Elsevier Ltd. All rights reserved.