I have a word not-in-mind that means to "turn [something] into" in the sense of using the first thing to get something you want more.
Perhaps the best way to present this word query is the game bigger or better. You begin with something small and go to a stranger and offer them that something for something else, bigger or better. You take that new something and go to another stranger and ask to trade that second something for a third something that is even bigger or better.
What have I done to that first something? I want to say 'relayed' or 'parleyed' but those definitions don't make sense. But maybe the ending sound is right?
Example: I have ---- [thing #1] into getting [thing #2].
It is not that I have transformed thing #1 into thing #2, but that I have used it in order to get thing #2.