May 15 (Reuters) - The following are the top stories on the New York Times business pages. Reuters has not verified these stories and does not vouch for their accuracy.

- Apple's AAPL.O two-year-old partnership with OpenAI has become strained, with the AI startup failing to see the expected benefits from its deal with the iPhone maker and preparing possible legal action.

- Jamieson Greer, the U.S. trade representative, said he expected China to agree to purchase more than $10 billion in U.S. agricultural products, as President Donald Trump prepares to wrap up a high-level summit in Beijing.

- The United States and China will discuss guardrails on artificial intelligence, including establishing a protocol for keeping powerful A.I. models out of the hands of non-state actors, Treasury Secretary Scott Bessent said.

- U.S. health officials are monitoring 16 additional people across the country for symptoms of hantavirus whom the Centers for Disease Control and Prevention has not previously mentioned, the agency said