The economy has been showing mixed signs of recovery and recent third quarter leasing statistics appear to indicate that the uncertainty could be leeching into the Manhattan office market. But Boston Properties feels confident that its big bet on midtown’s West Side will pay dividends in the next few years.

Deals are lining up at 150 East 52nd Street. Since taking over the agency work at the building in recent weeks, a team from the real estate services company Jones Lang LaSalle says that it already has two leases in the works and expects more on the way.