Investigations on synthesis and structure elucidation of novel [1,2,4]triazolo[1,2-a]pyridazine-1-thiones and their inhibitory activity against inducible nitric oxide synthase
摘要:
The inducible nitric oxide synthase (iNOS) is a target of great research interest due to its importance in a number of diseases, for example, septic shock and inflammatory lung diseases. A variety of 3-substituted [1,2,4]triazolo[1,2-a]pyridazine derivatives was synthesized by ring closure with hexahydropyridazinel-1-carbothioamide by using aliphatic and aromatic aldehydes. The activity of the new substances was tested on the insulin-secreting rat insulinoma cell line RINm5F. iNOS was expressed through exposure to interleukin-1 beta (IL-1 beta) and interferon-gamma (IFN-gamma). A number of the investigated compounds were more active than the reference inhibitor aminoguanidine (AG). Structure-activity relationships showed that a phenyl substituent in position 3 is apparently essential for inhibition. (C) 2013 Elsevier Ltd. All rights reserved.
Investigations on synthesis and structure elucidation of novel [1,2,4]triazolo[1,2-a]pyridazine-1-thiones and their inhibitory activity against inducible nitric oxide synthase
The inducible nitric oxide synthase (iNOS) is a target of great research interest due to its importance in a number of diseases, for example, septic shock and inflammatory lung diseases. A variety of 3-substituted [1,2,4]triazolo[1,2-a]pyridazine derivatives was synthesized by ring closure with hexahydropyridazinel-1-carbothioamide by using aliphatic and aromatic aldehydes. The activity of the new substances was tested on the insulin-secreting rat insulinoma cell line RINm5F. iNOS was expressed through exposure to interleukin-1 beta (IL-1 beta) and interferon-gamma (IFN-gamma). A number of the investigated compounds were more active than the reference inhibitor aminoguanidine (AG). Structure-activity relationships showed that a phenyl substituent in position 3 is apparently essential for inhibition. (C) 2013 Elsevier Ltd. All rights reserved.