Pfizer officials weren't available to comment for the report from Reuters.
Other bidders include Israel's Teva (TEVA) and Iceland's Actavis which had been requested to make final bids on Thursday at the latest, several sources told Reuters.
So far, Actavis' bid has been the highest at about 3 billion euros ($4.13 billion), including assumed debt.Debt-laden Actavis has raised the prospect of taking the enlarged company public should it win the auction, people familiar with the sale process told Reuters. Follow TheStreet.com on Twitter and become a fan on Facebook.
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