Tricylic ureas: A new class of HIV-1 protease inhibitors

Article abstract of DOI:10.1016/S0960-894X(98)00659-3

A new class of tricyclic ureas containing a conformationally constrained proline was designed with the aid of molecular modeling. Efficient stereoselective intermolecular pinacol coupling represented the highlight of the synthesis. These rigid cyclic ureas are active towards HIV-1 protease, with 9 being the most potent compound (Ki = 9 nM) despite interacting with only three side chain binding pockets of HIV protease.