Exclusive – Pfizer, Novartis, Abbott weigh bids for Brazil’s Ache – sources

By Jessica Toonkel and Ben Hirschler NEW YORK/LONDON (Reuters) – At least three of the world's top drugmakers are bidding for Brazil's Ache Laboratorios Farmaceuticos in an auction that may value the group at more than $5 billion, people familiar with the matter said. Pfizer Inc, Novartis AG and Abbott Laboratories are all weighing second-round bids to acquire the company, which boasts a strong position in Brazil's fast-growing pharmaceuticals market, the people said. Bids are due in the second half of April, two of the people said, asking not to be identified because the auction is not …