1. For instance, recent examples include: antibacterial agents: Bird, P.; Ellsworth, E. L.; Nguyen, D. Q.; Sanchez, J. P.; Showalter, H. D. H.; Singh, R.; Stier, M. A.; Tran, T. P.; Watson, B. M.; Yip, T. Int. patent WO01/53273(A1), 2001, Chem. Abstr. 2001, 135, 122511
2. PDE4 Inhibitors: Austin, R.; Bonnert, R.; Hunt, F.; Nikitidis, G.; Sanganee, H.; Sjö, P.; Warner, D. Int. Patent WO2007/108750(A1), 2007, Chem. Abstr. 2007, 147, 406836
3. Endothelin receptor antagonists: Furuya, S.; Ohtaki, T. European patent EP/608565(A1), 1994, Chem. Abstr. 1994, 121, 205395
4. Herbicidal agents: Hagan, H.; Raatz, P.; Walter, H.; Landes, A. Deutches patentamt DE4035479(A1), 1992, Chem. Abstr. 1992, 117, 90314.
5. Glucocoticoid antagonists: Figueroa-Perez, S.; Kolkhof, P.; Bärfacker, L.; Flamme, I.; Schlemmer, K.-H.; Kuhl, A.; Grosser, R.; Münter, K.; Knorr, A. Int. patent WO2007/140894(A1), 2007, Chem. Abstr. 2007, 148, 55087