By Davide Barbuscia and Yoruk Bahceli NEW YORK/LONDON (Reuters) – Banks are having conversations with potential buyers on how to get rid of their exposure to Russian corporate loans, but sanctions fears and pricing uncertainty are limiting trading activity and the ability of buyers to act, several banking sources said. Punishing Western sanctions on Moscow in the aftermath of its invasion of Ukraine have prompted some distressed debt buyers to approach banks holding Russian loans to sound out their appetite to potentially sell that exposure at a discount, two bankers said. Another banker said …