In an effort to discover potent antibacterials based on the entropically favored 'bioactive conformation'approach, a series of novel tricyclic molecules mimicking the conformationally constrained structure of Linezolid is reported. Based on the initial tricyclic molecule 1, the benzazepine derivative 2 was designed where the tricyclic structure had more flexibility around C–N bond compared to 1. While, the molecule 2 was less active, the molecule 3 ...