Question: The Messerschmitt 109TL was an alternative design proposed as a backup for a fighter version of a plane nicknamed what? 
Sentence (from "Messerschmitt Me 264"): The design was later selected as Messerschmitt's competitor in the "Reichsluftfahrtministerium"' s (the German Air Ministry) "Amerika Bomber" programme, which intended to develop a strategic bomber capable of attacking New York City from bases in France or the Azores.
Relevant evidence: No