Modifying the bicyclo[3.1.0]hexane pseudosugar ring of carbocyclic nucleosides to improve recognition by herpes thymidine kinase

ORGN 392

Maria J. Comin, jcomin@ncifcrf.gov, Laboratory of Medicinal Chemistry, Center for Cancer Research, NCI-Frederick, Frederick, MD 21702 and Victor E. Marquez, marquezv@dc37a.nci.nih.gov, Laboratory of Medicinal Chemistry, Center for Cancer Research, NCI-Frederick, Frederick, MD 21702-1201.
With the aim of further understand the conformational preferences of the kinases involved in the activation of the anti herpes simplex virus 1 (HSV-1) agent, North-MCT (1), a new thymidine analog (2) was designed and synthesized for optimal interaction with HSV-1 thymidine kinase. In order to do so, the compound was built with the antipodal South conformation, the base in the anti disposition, and a with repositioned hydroxyl group capable of mimicking the 3'-OH of a conventional nucleoside. The enantioselective synthesis of 2 was achieved through a linear approach, starting from the known cyclopentenone (-)-3. A Baylis-Hillman reaction was employed for the introduction of the hydroxymethyl side chain and a regioselective nucleophilic opening of a cyclic sulfite was used in order to obtain the desired regioisomer (4) with the required trans disposition of the oxygenated and nitrogenated functionalities on the carbocyclic ring.

 

New Reactions and Methodology, Total Synthesis, Materials, Devices and Switches, Lipids, Nucleotides and Mimetics
8:00 PM-10:00 PM, Tuesday, March 27, 2007 Hyatt Regency Chicago -- Riverside Center, Poster

Sci-Mix
8:00 PM-10:00 PM, Monday, March 26, 2007 Hyatt Regency Chicago -- Riverside Center, Sci-Mix

Division of Organic Chemistry

The 233rd ACS National Meeting, Chicago, IL, March 25-29, 2007