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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 synthesis of two chiral fragments of oleandomycin and lankamycin.
I PATERSON
– Tetrahedron Letters
(1983)
24,
1311
O-silylated enolate phenylthioalkylation: a new synthesis of unsaturated 1,5-dicarbonyl compounds.
HA KHAN, I PATERSON
– Tetrahedron Letters
(1982)
23,
2399
O-SILYLATED ENOLATE PHENYLTHIOALKYLATION - A SYNTHESIS OF ALPHA,BETA-UNSATURATED 5-MEMBERED AND 6-MEMBERED LACTONES
HA KHAN, I PATERSON
– Tetrahedron Letters
(1982)
23,
5083
The formation of allyl sulphides by phenylthio-migration: control by silicon
I Fleming, I Paterson, A Pearce
– JOURNAL OF THE CHEMICAL SOCIETY-PERKIN TRANSACTIONS 1
(1981)
256
O-SILYLATED ENOLATES IN ORGANIC-SYNTHESIS - ALPHA-ALKYLATION OF CARBONYL-COMPOUNDS BY 1,3-DITHIENIUM FLUOROBORATE
I PATERSON, LG PRICE
– Tetrahedron Letters
(1981)
22,
2829
O-Silylated dienolates in organic synthesis: γ-Selective alkylation of unsaturated carbonyl compounds by 1,5-dithienium fluoroborate.
I PATERSON, LG PRICE
– Tetrahedron Letters
(1981)
22,
2833
Allylsilanes in Organic Synthesis: A Method for the Introduction of Two Carbon Substituents in Place of Carbonyl Oxygen
I Fleming*, I Paterson
– Synthesis
(1979)
1979,
446
A Simple Synthesis of Carvone Using Silyl Enol Ethers
I Fleming*, I Paterson
– Synthesis
(1979)
1979,
736
ALPHA-ALKYLATION OF KETONES, ESTERS, AND LACTONES - ZINC BROMIDE-CATALYSED ALKYLATION OF O-SILYLATED ENOLATES, A SYNTHESIS OF (+/-)-AR-TURMERONE
I PATERSON
– TETRAHEDRON LETTERS
(1979)
1519
GAMMA-ALKYLATION OF UNSATURATED-KETONES AND ESTERS - ZINC BROMIDE-CATALYSED ALKYLATION OF ORTHO-SILYLATED DIENOLATES
I FLEMING, J GOLDHILL, I PATERSON
– TETRAHEDRON LETT
(1979)
3209
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Research Interest Group

Telephone number

01223 336407

Email address

ip100@cam.ac.uk