SL Green to pay $180M for midtown tower

SL Green Realty Corp. has reached a deal to buy 600 Lexington Ave. for a price near $180 million, two sources familiar with the transaction said. The 282,000-square-foot building owned by Hines Interests is one of three large New York City office properties for sale that have attracted significant investor attention despite a tough credit market and a weak market for office leasing. At $180 …