Abernathy MacGregor Group and Kekst and Company are engaged in the $1.5B acquisition of Kremers Urban Pharmaceuticals by private equity firms Advent International and Avista Capital Partners.

Kremers is a US-based generic pharma unit of Belgium's UCB, which said it is making the deal to focus on its core neurology and immunology businesses.

UCB bought the Princeton, N.J.-based Kremers Urban in 2006 when it was part of Schwarz Pharma.

Advent enlisted Abernathy MacGregor, while Kekst represents Avista on the PR front.

The deal is expected to close in the first quarter of 2015.