How do I connect 1-1/4″ copper drain pipe to 1-1/2″ PVC?

I need to connect 1-1/4” copper drain pipe to 1-1/2” PVC. It also needs a 90° horizontal turn so I’ll be using a long sweep 90° PVC elbow. Do they make reducing elbows?

This copper pipe is threaded into an iron drain and impossible to unscrew due to rust. I’m afraid of breaking that vertical iron pipe.