A novel class of oral direct renin inhibitors - highly potent 3,5-disubstituted piperidines bearing a tricyclic P3-P1 unit

The design and synthesis of a new direct renin inhibitor chemotype based on a 3,5-disubstituted piperidine bearing a tricyclic P3-P1 unit (4, IC50: 4 nM) is described. It is derived from a high-throughput screening hit containing the 3,5-disubstituted piperidine (3, IC50: 1.2 uM) and a tricyclic fragment (2, IC50 >100 uM) binding to the S1-S3 site of renin.