1-(2-((3-(1-(((methoxycarbonylmethyl-carbamoyl)-methyl)-carbamoyl)-3-methyl-butylcarbamoyl)-oxiranecarbonyl)-amino)-4-methyl-pentanoyl)-pyrrolidine-2-carboxylic acid
1-(2-((3-(1-(((methoxycarbonylmethyl-carbamoyl)-methyl)-carbamoyl)-3-methyl-butylcarbamoyl)-oxiranecarbonyl)-amino)-4-methyl-pentanoyl)-pyrrolidine-2-carboxylic acid