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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

Regiospecific α-methylenation and α-methylation of ketones: titanium tetrachloride promoted phenylthiomethylation of silyl enol ethers
I Peterson, I Fleming
– Tetrahedron Letters
(1979)
20,
995
GAMMA-SULFENYLATION OF ALPHA-BETA-UNSATURATED ALDEHYDES, KETONES, AND ESTERS - USE OF O-SILYLATED DIENOLATES
I FLEMING, J GOLDHILL, I PATERSON
– TETRAHEDRON LETTERS
(1979)
3205
ALPHA-METHYLENATION OF LACTONES AND ESTERS ZINC BROMIDE-CATALYZED PHENYLTHIOMETHYLATION OF OMICRON-SILYLATED ENOLATES
I PATERSON, I FLEMING
– TETRAHEDRON LETT
(1979)
993
ALPHA-ALKYLATION AND ALPHA-ALKYLIDENATION OF CARBONYL COMPOUNDS - LEWIS ACID-PROMOTED PHENYLTHIOALKYLATION OF OMICRON-SILYLATED ENOLATES
I PATERSON, I FLEMING
– TETRAHEDRON LETTERS
(1979)
2179
Free radical addition to olefins. Part 23. Kinetics of the addition of chloroiodomethane to ethylene and vinyl fluoride
I PATERSON, JM TEDDER, JC WALTON
– JOURNAL OF THE CHEMICAL SOCIETY-PERKIN TRANSACTIONS 2
(1978)
884
ALPHA-TERT-BUTYLATION OF ALDEHYDES AND KETONES BY FRIEDEL-CRAFTS ALKYLATION OF TRIMETHYLSILYL ENOL ETHERS
TH CHAN, I PATERSON, J PINSONNAULT
– TETRAHEDRON LETT
(1977)
4183
Homosolvolysis
H LOW, I PATERSON, JM TEDDER, J WALTON
– Chemical Communications
(1977)
171
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Research Interest Group

Telephone number

01223 336407

Email address

ip100@cam.ac.uk