Download MendeleyAroylguanidine-based factor Xa inhibitors: the discovery of BMS-344577
Shi, Y., Li, C., O'Connor, S.P., Zhang, J., Shi, M., Bisaha, S.N., Wang, Y., Sitkoff, D., Pudzianowski, A.T., Huang, C., Klei, H.E., Kish, K., Yanchunas, J., Liu, E.C., Hartl, K.S., Seiler, S.M., Steinbacher, T.E., Schumacher, W.A., Atwal, K.S., Stein, P.D.(2009) Bioorg Med Chem Lett 19: 6882-6889
- PubMed: 19896847
- DOI: https://doi.org/10.1016/j.bmcl.2009.10.084
- Primary Citation of Related Structures:
3K9X - PubMed Abstract:
We report the design and synthesis of a novel class of N,N'-disubstituted aroylguanidine-based lactam derivatives as potent and orally active FXa inhibitors. The structure-activity relationships (SAR) investigation led to the discovery of the nicotinoyl guanidine 22 as a potent FXa inhibitor (FXa IC(50)=4 nM, EC(2xPT)=7 microM). However, the potent CYP3A4 inhibition activity (IC(50)=0.3 microM) of 22 precluded its further development. Detailed analysis of the X-ray crystal structure of compound 22 bound to FXa indicated that the substituent at the 6-position of the nicotinoyl group of 22 would be solvent-exposed, suggesting that efforts to attenuate the unwanted CYP activity could focus at this position without affecting FXa potency significantly. Further SAR studies on the 6-substituted nicotinoyl guanidines resulted in the discovery of 6-(dimethylcarbamoyl) nicotinoyl guanidine 36 (BMS-344577, IC(50)=9 nM, EC(2xPT)=2.5 microM), which was found to be a selective, orally efficacious FXa inhibitor with an excellent in vitro liability profile, favorable pharmacokinetics and pharmacodynamics in animal models.
Organizational Affiliation:
Research and Development, Bristol-Myers Squibb Company, PO Box 5400, Princeton, NJ 08543-5400, USA. yan.shi@bms.com
