International Multifoods Corp. (NYSE:IMC) yesterday announced that it has signed an amended purchase agreement with General Mills, Inc. (NYSE:GIS), and The Pillsbury Company, a subsidiary of Diageo plc (LSE:DGE; NYSE:DEO), regarding Multifoods' planned acquisition of the Pillsbury desserts and specialty products portfolio, the Pillsbury non-custom foodservice baking mix business and General Mills' U.S. Robin Hood brand. The amended agreement includes modifications and enhancements to the original agreement, which was announced Feb. 5, designed to address Federal Trade Commission antitrust concerns and preserve competition in the market.