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Worcester Polytechnic Institute Researcher Seeks a Better Way to Design Drugs
  • USA - English


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Worcester Polytechnic Institute

Sep 23, 2015, 13:30 ET

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Marion Emmert, PhD
Marion Emmert, PhD

Worcester, Mass. (PRWEB) September 23, 2015 -- The National Institutes of Health (NIH) has awarded $346,000 to Worcester Polytechnic Institute (WPI) for a three-year research project to advance development of a chemical process that could significantly improve the ability to design new pharmaceuticals and streamline the manufacturing of existing drugs.

Some of our early data are promising, but we have a lot more work to do to understand the basic mechanisms involved in the new processes,” Emmert said. “We also have to adapt the process to molecules that could be used directly for drug development.

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Led by Marion Emmert, PhD, assistant professor of chemistry and biochemistry at WPI, the research program involves early-stage technology developed in her lab that may yield a more efficient and predictable method of bonding a vital class of structures called aromatic and benzylic amines to a drug molecule.

“Seven of the top 10 pharmaceuticals in use today have these substructures, because they are so effective at creating a biologically active compound,” Emmert said. “The current processes used to add these groups are indirect and not very efficient. So we asked ourselves, can we do it better? ”

For a drug to do its job in the body it must interact with a specific biological target and produce a therapeutic effect. First, the drug needs to physically attach or “bind” to the target, which is a specific part of a cell, protein, or molecule. As a result, designing a new drug is like crafting a three-dimensional jigsaw puzzle piece that fits precisely into an existing biological structure in the body. Aromatic and benzylic amines add properties to the drug that help it bind more efficiently to these biological structures.

Getting those aromatic and benzylic amines into the structure of a drug, however, is difficult. Traditionally, this requires a specialized chemical bond as precursor in a specific location of the drug’s molecular structure. “The current approach to making those bonds is indirect, requires several lengthy steps, and the outcome is not always precise or efficient,” Emmert said. “Only a small percentage of the bonds can be made in the proper place, and sometimes none at all.”

Emmert’s new approach uses novel reagents and metal catalysts to create a process that can attach amines directly, in the right place, every time. In early proof-of-principle experiments, Emmert has succeeded in making several amine bonds directly in one or two days, whereas the standard process can take two weeks with less accuracy. Over the next three years, with support from the NIH, Emmert’s team will continue to study the new catalytic processes in detail. They will also use the new process to synthesize Asacol, a common drug now in use for ulcerative colitis, and expect to significantly shorten its production.

“Some of our early data are promising, but we have a lot more work to do to understand the basic mechanisms involved in the new processes,” Emmert said. “We also have to adapt the process to molecules that could be used directly for drug development.”

About Worcester Polytechnic Institute

Founded in 1865 in Worcester, Mass., WPI is one of the nation’s first engineering and technology universities. Its 14 academic departments offer more than 50 undergraduate and graduate degree programs in science, engineering, technology, business, the social sciences, and the humanities and arts, leading to bachelor’s, master’s and doctoral degrees. WPI's talented faculty work with students on interdisciplinary research that seeks solutions to important and socially relevant problems in fields as diverse as the life sciences and bioengineering, energy, information security, materials processing, and robotics. Students also have the opportunity to make a difference to communities and organizations around the world through the university's innovative Global Perspective Program. There are now 45 WPI project centers in the Americas, Africa, Asia-Pacific, and Europe.

Contact:
Michael Cohen
Worcester Polytechnic Institute
Worcester, Massachusetts
508-868-4778, mcohen(at)wpi(dot)edu

Michael Cohen, Worcester Polytechnic Institute, http://www.wpi.edu, +1 (508) 868-4778, [email protected]

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