Diabetes is a metabolic disorder characterized by hyperglycemia. When not properly controlled, complications include neuropathy, coronary artery disease, and renal failure. Several drugs are approved for diabetes treatment; however their use is associated with side effects and lack of efficacy in attenuating the development of long-term complications. This work describes the virtual screening and synthesis of a novel series of sulfonylhydrazone derivatives designed as peroxisome proliferator-activated receptor gamma (PPARγ) agonists and investigation of the analogs for hypoglycemic activity in a murine model of diabetes. Docking studies identified LASSBio-331 (5) as having theoretical affinity for PPARγ similar to the prototype (S)-rosiglitazone. Several structural modifications were proposed for the structure of LASSBio-331, resulting in the synthesis of five novel compounds, which showed experimental affinity for PPARγ. Among these new compounds, LASSBio-1471 (15) had the best theoretical binding energy for PPARγ and was selected for testing in STZ-induced diabetes. Four weeks after single intravenous injection of STZ (60 mg/kg), Wistar rats were treated with vehicle (DMSO) or LASSBio-1471 (20 mg/kg, i.p.) for 7 days. The blood glucose levels of rats treated with LASSBio-1471 were reduced from 548.4 ± 26.0 mg/dL before treatment to 259.6 ± 73.1 mg/dL (P < 0.05). Paw withdrawal threshold was significantly reduced in diabetic rats and was restored from 21.9 ± 1.7 g to 36.7 ± 1.2 g after 7 days of treatment with LASSBio-1471 (P < 0.05). Thus, the novel sulfonylhydrazone derivative is a PPARγ ligand that is effective for treatment of diabetic neuropathy in STZ-injected rats.
2-Aminothiophene derivatives are an important class of heterocycles found in several biologically active and natural compounds. This class of compounds has demonstrated a broad spectrum of activities and applications as pharmaceuticals and agrochemicals, dyes, biodiagnostics, and electronic and optoelectronic devices (1). -5,6,7,8-tetrahydro-4H-cyclohepta[b]thiophene-3-carbonitrile (2r), which inhibited more than 97 % growth of the three cell lines. The PLS discriminant analysis (PLS-DA) applied generated good exploratory and predictive results and showed that the descriptors having shape characteristics were strongly correlated with the biological data.
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