using System;

using System.Text.RegularExpressions;

public class Program

{

    public static void Main()

    {       

        string strMyString = "4654564-|@$@|-Jennifer Austin    -$@%@$-646565546-|@$@|-Dutchin Henry LLC    -$@%@$-444309386-|@$@|-Winston Cooper LLC   ";

        Console.WriteLine(strMyString);

        string pattern = "\\s+-";

        string replacement = "-";

        string result = Regex.Replace(strMyString, pattern, replacement);

        Console.WriteLine(result);

    }

}