It's not a derivative

The Disciples’ Prayer was not based on, let alone derived from the Kaddish, the Amidah, or the Morning Prayer. Despite claims to the contrary, we have no real evidence that these prayers actually existed, let alone were used by Palestinian Jews, in the first half of the first century CE, at least in the form and wording that those who argue for this view assume they had. Nor do we have any strong reason to believe that Jesus would have known them if they were so used and had the form Jeremias attributes to them early in the first century CE.—The Disciples’ Prayer, page 54