PDE5-IN-7 (compound 8) is a selective phosphodiesterase 5 (PDE 5) inhibitor with an IC50 value of 5 nM, while an IC50 of 300 nM for PDE 1[1].
PDE5-IN-7 (compound 15, Desild) can be detected and isolated from Sildenafil derivatives[2].
[1]. Haning H, et al. Imidazo[5,1-f]triazin-4(3H)-ones, a new class of potent PDE 5 inhibitors. Bioorg Med Chem Lett. 2002 Mar 25;12(6):865-8.
[2]. Assemat G, et al. Isolation and identification of ten new sildenafil derivatives in an alleged herbal supplement for sexual enhancement. J Pharm Biomed Anal. 2020 Nov 30;191:113482.
















