The proposed research involves the development of new methods for the synthesis of complex organic molecules and the application of these methods to the total synthesis of biologically important natural products and hormones. The first section involves new methods for the synthesis of nitrogen containing heterocycles. We wish to employ vinylimidates and N-acyl vinyl imidates as 4 pi and 2 pi electron components in the intramolecular Diels-Alder reaction. These new methods afford the potential for enantiospecific construction of perhydroisoquinoline and perhydroisoindole ring systems, common substructural features of many biologically important alkaloids. The second section describes new methodology for ring annulation chemistry. Utilizing a novel class of synthetic intermediates, bridgehead enol lactones, we are developing general protocols for controlling both regio- and stereochemistry in Diels-Alder reactions. These methods are amenable to the enantiospecific synthesis of the steroid ring nucleus. Particular emphasis will be focused on developing a short, enantiospecific entry into the adrenyl corticoids. The third section outlines our program in the synthesis of taxane natural products. We have developed a short convergent entry into the taxane skeleton and our targets for the immediate future include compounds that we will screen as protomers for microtubule formation.

Agency
National Institute of Health (NIH)
Institute
National Institute of General Medical Sciences (NIGMS)
Type
Research Project (R01)
Project #
5R01GM033484-08
Application #
3283264
Study Section
Medicinal Chemistry Study Section (MCHA)
Project Start
1984-04-01
Project End
1993-01-31
Budget Start
1992-02-01
Budget End
1993-01-31
Support Year
8
Fiscal Year
1992
Total Cost
Indirect Cost
Name
University of California Irvine
Department
Type
Schools of Arts and Sciences
DUNS #
161202122
City
Irvine
State
CA
Country
United States
Zip Code
92697