using System;

public class Program

{

    public static void Main()

    {

        var input = "{Test} + {STRATUS.Alias.Name} + {STRATUS.Alias.Description}";

        var jackpots = input.Split(new string[] {"STRATUS.Alias."}, StringSplitOptions.None);

          //.Split('}')[0];

​

        foreach (var jackpot in jackpots)

        {

            Console.WriteLine(jackpot.Split('}')[0]);

        }

    }

}