Design, Synthesis, Crystallographic Studies, and Preliminary Biological Appraisal of New Substituted Triazolo[4,3-b]pyridazin-8-amine Derivatives as Tankyrase Inhibitors.
Liscio, P., Carotti, A., Asciutti, S., Karlberg, T., Bellocchi, D., Llacuna, L., Macchiarulo, A., Aaronson, S.A., Schuler, H., Pellicciari, R., Camaioni, E.(2014) J Med Chem 57: 2807-2812
- PubMed: 24527792 
- DOI: https://doi.org/10.1021/jm401356t
- Primary Citation of Related Structures:  
4M7B - PubMed Abstract: 
Searching for selective tankyrases (TNKSs) inhibitors, a new small series of 6,8-disubstituted triazolo[4,3-b]piridazines has been synthesized and characterized biologically. Structure-based optimization of the starting hit compound NNL (3) prompted us to the discovery of 4-(2-(6-methyl-[1,2,4]triazolo[4,3-b]pyridazin-8-ylamino)ethyl)phenol (12), a low nanomolar selective TNKSs inhibitor working as NAD isostere as ascertained by crystallographic analysis. Preliminary biological data candidate this new class of derivatives as a powerful pharmacological tools in the unraveling of TNKS implications in physiopathological conditions.
Organizational Affiliation: 
Dipartimento di Chimica e Tecnologia del Farmaco, Università degli Studi di Perugia , Via del Liceo 1, 06123 Perugia, Italy.