Phosphoramidon

Phosphoramidon, a microbial metabolite, is a specific metalloprotease thermolysin inhibitor with an IC50 of 0.4 μg/mL. Phosphoramidon also inhibits endothelin-converting enzyme (ECE), neutral endopeptidase (NEP), and angiotensin-converting enzyme (ACE) with IC50 values of 3.5, 0.034, and 78 μM, respectively[1][2][3].

[1]Umezawa S, , et al. A new microbial metabolite phosphoramidon (isolation and structure). Tetrahedron Letters, 1972, 13(1): 97-100.|[2]Suda H, et al. A thermolysin inhibitor produced by actinomycetes: phosphoramidon. The Journal of antibiotics, 1973, 26(10): 621-623.|[3]Kukkola PJ, et al. Differential structure-activity relationships of phosphoramidon analogues for inhibition of three metalloproteases: endothelin-converting enzyme, neutral endopeptidase, and angiotensin-converting enzyme.J CardiovascPharmacol. 1995;26Suppl 3:S65-8.|[4]Matsumura Y, et al. Phosphoramidon, a metalloproteinase inhibitor, suppresses the hypertensive effect of big endothelin-1. Eur J Pharmacol. 1990 Aug 21;185(1):103-6.|[5]McMahon EG, et al. Phosphoramidon blocks the pressor activity of porcine big endothelin-1-(1-39) in vivo and conversion of big endothelin-1-(1-39) to endothelin-1-(1-21) in vitro. Proc Natl Acad Sci U S A. 1991 Feb 1;88(3):703-7.