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Yusuf Hamied Department of Chemistry

 

Research in the group ranges across the total synthesis of biologically active natural products and structural analogues to the discovery and development of new synthetic methods. Professor Paterson retired in October 2021 and is no longer accepting graduate students and postdocs.

Stereocontrolled Synthesis of Bioactive Natural Products and Structural Analogues

Representative targets include rare anticancer polyketides of both marine and terrestrial origin such as 1-4 below. For example, dictyostatin (1) shares the same microtubule-stabilising mechanism as the clinically important anticancer drug Taxol, while spirastrellolide A (2) is a potent inhibitor of protein phosphatase 2A. Likewise, chivosazole A (3) and reidispongiolide A (4) are novel actin-interacting macrolides isolated from myxobacteria and marine sponges respectively, which also represent challenging synthetic targets. In all these cases, the initial uncertainty over the stereochemistry, combined with their natural scarcity, has adversely affected their development. Efficient and flexible synthetic routes for the modular construction of these and other complex polyketide natural products are being pursued to establish their full configurations and provide a sustainable supply for detailed biological evaluation. A parallel objective is to design simplified analogues and hybrids that retain the exceptional cancer cell growth inhibitory properties whilst increasing their synthetic accessibility.

New Synthetic Methods

There is a need for new and more efficient methods of synthesis, particularly ones that achieve high levels of stereochemical control, where the development of asymmetric aldol methodology is of particular interest. These new methods are being applied to the synthesis of a wide variety of biologically important natural products.

Selected Publications

  • Dictyostatin and hybrids with discodermolide and taxol. Chem. Asian J. (2011), 6, 459; Tetrahedron (2010), 66, 6534
  • Spirastrellolide A. Angew. Chem. Int. Ed. (2012), 51, 2749; Org. Biomol. Chem.  (2012), 10, 5861 and 5873
  • Polyketide natural products as anticancer drug candidates. Org. Lett.  (2013), 15, 3118; Angew. Chem. Int. Ed. (2013), 52, 6517; Angew. Chem. Int. Ed. (2011), 50, 3219Curr. Opin. Drug Discov. Devel. (2010), 13, 777
  • Natural product synthesis using asymmetric aldol reactions. Angew. Chem. Int. Ed. (2013), 52, 9097

Publications

Studies in macrolide synthesis: A highly stereoselective synthesis of (+)-(9S)-dihydroerythronolide a using macrocyclic stereocontrol
I PATERSON, DJ RAWSON
– Tetrahedron Letters
(1989)
30,
7463
Studies in polyether synthesis: Controlled bisepoxide cyclisation using a β-diketone group
I PATERSON, PA CRAW
– Tetrahedron Letters
(1989)
30,
5799
Studies in marine cembranolide synthesis: A synthesis of 2,3,5-trisubstituted furan intermediates for lophotoxin and pukalide
I PATERSON, M GARDNER, BJ BANKS
– Tetrahedron
(1989)
45,
5283
THEORETICAL-STUDIES OF ALDOL STEREOSELECTIVITY - THE DEVELOPMENT OF A FORCE-FIELD MODEL FOR ENOL BORINATES AND THE INVESTIGATION OF CHIRAL ENOLATE PI-FACE SELECTIVITY
J GOODMAN, I PATERSON, S KAHN
– ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY
(1988)
196,
352
NEW ASYMMETRIC ALDOL METHODOLOGY USING BORON ENOLATES
I PATERSON
– CHEMISTRY & INDUSTRY
(1988)
390
Aldol condensations of chiral ethylketones: Control by chiral boron reagents.
I PATERSON, MA LISTER
– Tetrahedron Letters
(1988)
29,
585
Studies in macrolide synthesis: A concise asymmetric synthesis of a macrolide intermediate for the erythronolides.
I PATERSON, DDP LAFFAN, DJ RAWSON
– Tetrahedron Letters
(1988)
29,
1461
DEGRADATION OF OLEANDOMYCIN - CONTROLLED REMOVAL OF SUGARS TO GIVE OLEANDONOLIDE-C3,C5-ACETONIDE
I PATERSON, P ARYA
– Tetrahedron
(1988)
44,
253
α-alkylation and α-alkylidenation of carbonyl compounds by o-silylated enolate phenylthioalkylation
I PATERSON
– Tetrahedron
(1988)
44,
4207
Studies in polyether synthesis: Spiroacetal formation by directed bisepoxide cyclisation.
I PATERSON, I BODDY
– Tetrahedron Letters
(1988)
29,
5301
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Research Interest Group

Telephone number

01223 336407

Email address

ip100@cam.ac.uk