U. Niewöhner

The phosphodiesterase inhibitory selectivity and the in vitro and in vivo potency of the new PDE5 inhibitor vardenafil

P. Cuevas, E. Bischoff, J. Angulo, 2001, International Journal of Impotence Research.

Comparison of different heterocyclic scaffolds as substrate analog PDE5 inhibitors.

Thomas Lampe, Alexander Hillisch, Thomas Schenke, 2005, Bioorganic & medicinal chemistry letters.

Phosphodiesterase type 5 (PDE5) inhibitors.

E. Bischoff, U. Niewöhner, H. Haning, 2003, Progress in medicinal chemistry.

Inhibition of Hepatitis B Virus Replication by Drug-Induced Depletion of Nucleocapsids

B. Beckermann, U. Pleiss, K. Schlemmer, 2003, Science.

Imidazo[5,1-f]triazin-4(3H)-ones, a new class of potent PDE 5 inhibitors.

T. Lampe, E. Bischoff, U. Niewöhner, 2002, Bioorganic & medicinal chemistry letters.

Derives du type 9-dialkylaminopurinone

J. Keldenich, K. Schlemmer, E. Bischoff, 1999 .

Effects of two selective phosphodiesterase type 5 inhibitors, sildenafil and vardenafil, on object recognition memory and hippocampal cyclic GMP levels in the rat

A. Blokland, J. Vente, J. Prickaerts, 2002, Neuroscience.