Deals of the day-Mergers and acquisitions
(Adds Alexion Pharmaceuticals, Saint-Gobain, Novo Banco and others)
Sept 1 (Reuters) - The following bids, mergers, acquisitions and disposals were reported by 2000 GMT on Tuesday:
** Ten weeks after closing its $8.4 billion purchase of Synageva BioPharma Corp, Alexion Pharmaceuticals Inc announced on Tuesday European approval for the key drug acquired through the deal, an enzyme-replacement therapy for an ultra-rare, life threatening disease.
** BG Group plc, which is being acquired by Royal Dutch Shell plc, has put up for sale its 22.2 percent stake in the huge Thai Bongkot offshore gas field valued at around $1.2 billion, people familiar with the matter said.
** A Swiss court confirmed that Saint-Gobain did not have to launch a mandatory public takeover bid for all the shares of Swiss chemical firm Sika, the French group said on Tuesday.