PMID: 14627400

Authors:

Slater MJ, Amphlett EM, Andrews DM, Bamborough P, Carey SJ, Johnson MR, Jones PS, Mills G, Parry NR, Somers DO, Stewart AJ, Skarzynski T

Title:

Pyrrolidine-5,5-trans-lactams. 4. Incorporation of a P3/P4 urea leads to potent intracellular inhibitors of hepatitis C virus NS3/4A protease.

Journal:

Org Lett. 2003 Nov 27;5(24):4627-30.

Abstract:

[reaction: see text] In this, the first of two Letters, we describe how a P3/P4 urea linking unit was used to greatly enhance the biochemical and replicon potency of inhibitors based upon the pyrrolidine-5,5-trans-lactam template. Compound 7b demonstrated a 100 nM IC(50) in the replicon cell-based surrogate HCV assay.