Structure-activity relationships of novel, highly potent, selective, and orally active CCR1 antagonists
- Bioorg Med Chem Lett. 2007 Jun 15;17(12):3367-72. doi: 10.1016/j.bmcl.2007.03.104.
- 1. Department of Chemistry, Tanabe Research Laboratories, Inc., 4540 Towne Centre Court, San Diego, CA 92121, USA.
Design and synthesis of a series of 3-amino-4-(2-(2-(4-benzylpiperazin-1-yl)-2-oxoethoxy)phenylamino)cyclobutenedione derivatives as novel CCR1 antagonists are described. Structure-activity relationship studies led to the identification of compound 22, which demonstrated potent binding activity, functional antagonism of CCR1 as well as good species cross-reactivity. In addition, compound 22 also showed desirable pharmacokinetic profiles and was selected for in vivo studies in the mouse collagen-induced arthritis model.