This project will study synthesis of compounds which are structurally related to tetrodotoxin that are neuro-blocking agents. Such compounds act by selectively blocking the transient sodium transport across membranes of activated nerve axons. Previous studies have shown that modification of the tetrodotoxin structure at positions six or eleven, remote from the guanidine moiety, retain the activity of tetrodotoxin. These findings will be extended by studying practical ways of synthesizing analogs which will allow the incorporation of radioactive tritium and carbon into the colecule and will also allow making active fluorescent, photoaffinity, and spin labeled analogs of tetrodotoxin. Such compounds will be valuable in neuro-physiological research and hold out the possibility of developing a practical local anesthetic base on the unique sodium channel blocking action of TTX.

Agency
National Institute of Health (NIH)
Institute
National Institute of Neurological Disorders and Stroke (NINDS)
Type
Research Project (R01)
Project #
5R01NS014345-09
Application #
3395492
Study Section
Medicinal Chemistry Study Section (MCHA)
Project Start
1978-06-01
Project End
1987-11-30
Budget Start
1986-06-01
Budget End
1987-11-30
Support Year
9
Fiscal Year
1986
Total Cost
Indirect Cost
Name
Stanford University
Department
Type
Schools of Arts and Sciences
DUNS #
800771545
City
Stanford
State
CA
Country
United States
Zip Code
94305
Koos, M; Mosher, H S (1986) A convenient synthesis of apiose. Carbohydr Res 146:335-41
Mosher, H S (1986) The chemistry of tetrodotoxin. Ann N Y Acad Sci 479:32-43