If the scan is negative, indicating no clumps or few clumps of amyloid, "that gives the clinician a clue that Alzheimer's is less likely to be the cause of those symptoms, " said Daniel Skovronsky, who developed the agent and is the global brand-development leader for Amyvid at Lilly.

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Spectrum has also signed an exclusive collaboration with Allergan (AGN), a technology-driven global health care company, for the development and commercialization of Apaziquone, an agent aimed at treating non-muscle bladder cancer.

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Clifford Finn, president of new-development marketing at Citi Habitats, the agent for the building, said the building has attracted a class of renters who could afford to buy but choose to rent, largely for the views.

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The split ends a decades-long partnership that appeared to unravel after Lilly signed a deal earlier this year with Boehringer Ingelheim to jointly develop and sell several diabetes compounds that are in mid- and late-stage development, including a Boehringer oral diabetes agent known as linagliptin.

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