In this renewal proposal it is stated that the major objective in this research is to make significant contributions to organic chemistry and medicine through synthetic studies on physiologically active natural and man-made organic compounds, including 1. Palytoxin: Total Synthesis, Preferred Local and Global Conformation, Preparation of Radioactively Labelled PTX, and Preparation of Affinity Column, 2. Conformational Analysis of C- and O- Glycosides: Human Blood antigens, 6-O-Methyl-D-glucose containing Lipopolysaccharides (MGLP) and 3-O-methylmannose-containing Polysaccharides (MMP), and C-Trehaloses, 3. Chemical Ruler: Conformational Analysis of Fatty Acids and Their Derivatives; Design and Synthesis of Large Organic Molecules with Ion Channel-like Assemblies; Stereochemistry Assignment of Maitotoxin, 4. Structure Elucidation and Synthesis of AAL toxins and Fumonisins, 5. Ni(II)/Cr(II)-Mediated Coupling Reaction: Asymmetric Process, 6. Tripodal Ligand Chemistry: Enterobactin analogs and others, and 7. Total Synthesis of Batrachotoxin and Aranotin. The principal investigator notes that the power of organic chemistry is most effectively extended by challenging complex systems, and much of the progress of medicine critically depends upon the extension of the power of organic chemistry. He further states that it is also his specific objective to develop practical and efficient syntheses of certain natural products and their analogs which have high physiological activity, but are not available in appreciable amounts from natural sources. He expects that these studies are to stimulate progress in medicine.

Agency
National Institute of Health (NIH)
Institute
National Institute of Neurological Disorders and Stroke (NINDS)
Type
Research Project (R01)
Project #
5R01NS012108-23
Application #
2431108
Study Section
Medicinal Chemistry Study Section (MCHA)
Program Officer
Streicher, Eugene
Project Start
1978-06-01
Project End
2000-05-31
Budget Start
1997-06-01
Budget End
1998-05-31
Support Year
23
Fiscal Year
1997
Total Cost
Indirect Cost
Name
Harvard University
Department
Chemistry
Type
Schools of Arts and Sciences
DUNS #
071723621
City
Cambridge
State
MA
Country
United States
Zip Code
02138
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Ghosh, Indranath; Kishi, Yoshito; Tomoda, Hiroshi et al. (2004) Use of a chiral praseodymium shift reagent in predicting the complete stereostructure of glisoprenin A. Org Lett 6:4719-22

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