The molecule is a member of the class of guanidines isolated from the culture mycelium of the fungal strain Aphanoascus fulvescens and has been shown to exhibit inhibitory activity against cathepsin B and L. It has a role as a cathepsin B inhibitor, a cathepsin L (EC 3.4.22.15) inhibitor and a fungal metabolite. It is an epoxide, a member of guanidines, a monocarboxylic acid, a member of imidazoles and a dicarboxylic acid monoamide.
(2S,3S)-3-[[(2S)-1-[3-(2-amino-1H-imidazol-5-yl)propylamino]-4-methyl-1-oxopentan-2-yl]carbamoyl]oxirane-2-carboxylic acid