Goldman Sachs and Citibank are leading the financing backing Bain Capital's E1.4 billion acquisition of Deutsche Bahn's Brenntag and Interfer Stahl units. Total debt is said to be around E1.1 billion and will consist of $300-500 million in dollar-denominated "B" and "C" tranches, a source familiar with the deal said. Bain landed the company in an auction. The Blackstone Group and CVC Capital Partners were reportedly among the other bidders. Brenntag is Deutsche Bahn's chemical distribution unit and Interfer Stahl is the company's steel-trading division. The transaction is expected to be completed in February or March.