Researchers Present New Approach to Accessing Biorelevant Structures by “Remodelling” Natural Products

The field of diversity-oriented synthesis (DOS) has been very fruitful in providing access to numerous new molecules with diverse shapes and chemical structures in order to discover candidate molecules for therapeutic use.

Boston University researchers, in a paper published in the journal Nature Chemistry [23 OCTOBER 2011 | DOI: 10.1038/NCHEM.1178], present a new approach to accessing new, biorelevant structures by “remodelling” natural products. In this case, they demonstrate how the natural product derivative fumagillol can been remodelled to access a collection of new molecules using highly efficient chemical reactions.

“Overall, these studies should pave the way for work to identify pharmacological tools for use in CNS research, oncology, and as anti-infective agents,” said John A. Porco, Jr., professor of chemistry at Boston University. “These studies also will enable future studies to remodel additional natural product scaffolds to access novel therapeutic agents.”

In the search for novel biologically active molecules, DOS strategies break through the limitation of traditional library synthesis by sampling new chemical space. Many natural products can be regarded as useful starting points for DOS, wherein stereochemically rich core structures may be reorganized into chemotypes that are distinctly different from the parent structure. Ideally, to be suited to library applications, such transformations should be general and involve few steps.

With this objective in mind, Porco and colleagues including Professor John Snyder and postdoctoral fellow Dr. Brad Balthaser successfully remodelled the highly oxygenated natural product fumagillol in several ways using a reaction-discovery-based approach. In reactions with amines, excellent selectivity in a bis-epoxide opening/cyclization sequence was obtained using the appropriate metals catalysts forming either perhydroisoindole or perhydroisoquinoline products. Perhydroisoindoles were further remodelled to other complex structures including novel benzoxazepines.

About Boston University—Founded in 1839, Boston University is an internationally recognized private research university with more than 30,000 students participating in undergraduate, graduate, and professional programs. As Boston University’s largest academic division, the College and Graduate School of Arts & Sciences is the heart of the BU experience with a global reach that enhances the University’s reputation for teaching and research.

Contact information for the authors:

John A. Porco Jr.
Professor of Chemistry
Boston University
590 Commonwealth Avenue
Boston, MA 02215
E-mail: porco@bu.edu
Phone: +1-617-353-2493
Group website: http://people.bu.edu/porcogrp
CMLD-BU website: http://cmld.bu.edu

Media Contact

John A. Porco Jr. Newswise Science News

More Information:

http://www.bu.edu

All latest news from the category: Life Sciences and Chemistry

Articles and reports from the Life Sciences and chemistry area deal with applied and basic research into modern biology, chemistry and human medicine.

Valuable information can be found on a range of life sciences fields including bacteriology, biochemistry, bionics, bioinformatics, biophysics, biotechnology, genetics, geobotany, human biology, marine biology, microbiology, molecular biology, cellular biology, zoology, bioinorganic chemistry, microchemistry and environmental chemistry.

Back to home

Comments (0)

Write a comment

Newest articles

Lighting up the future

New multidisciplinary research from the University of St Andrews could lead to more efficient televisions, computer screens and lighting. Researchers at the Organic Semiconductor Centre in the School of Physics and…

Researchers crack sugarcane’s complex genetic code

Sweet success: Scientists created a highly accurate reference genome for one of the most important modern crops and found a rare example of how genes confer disease resistance in plants….

Evolution of the most powerful ocean current on Earth

The Antarctic Circumpolar Current plays an important part in global overturning circulation, the exchange of heat and CO2 between the ocean and atmosphere, and the stability of Antarctica’s ice sheets….

Partners & Sponsors