* New synergy targets emerged after integration talks
* Reaped from common IT, real estate, management structures
* Deutsche Boerse sees NYSE Euronext as superior offer
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FRANKFURT, April 28 (Reuters) - Deutsche Boerse Chief Executive Reto Francioni said he sees possible synergies of at least 500 million euros ($742 million) from a combination with the NYSE Euronext, far more than previosly stated.
"Following the work conducted by both teams since the execution of the business agreement ... we were able to increase our initial synergy estimates provided on Feb. 15, 2011, to a new synergy target of at least 500 million euros," Francioni told analysts.
Now have more concrete assumptions. "It is an ambitious target, but we think we can realise this," Chief Financial officer Gregor Pottmeyer said.
Of these new synergies, 50 percent will come out of the technology segment, based on a common trading and clearing infrastructure, by consolidating networks and information technology (IT), Pottmeyer said.
A further 30 percent comes out of the corporate centre, through measures such as combining the global real estate portfolio and aligning the management structure across the entire group.
The new synergy estimates bolster Deutsche Boerse's $10 billion offer for NYSE Euronext. Boerse had previously said it saw annual cost savings of the deal at 300 million euros. (Reporting by Harro Ten Wolde, Edward Taylor and Kerstin Leitel; Editing by Will Waterman) ($1=.6740 Euro)