May 27 (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.

• The British oil giant BP BP.L said on Tuesday that it had removed its chair, Albert Manifold, saying that the board had "serious concerns" about his leadership, less than a year after he was appointed.

• Eli Lilly LLY.N said it would buy three vaccine developers in deals collectively worth up to $4 billion, a move that signals a return to an area that had not been a major focus for the company in recent years.

• Start-up, OpenRouter, which describes itself as a marketplace for A.I. models plans to announce that it raised $113 million at a $1.3 billion valuation, led by CapitalG, an investment arm of Alphabet, Google's parent company.