NOVEL SODIUM CHANNEL BLOCKING COMPOUNDS TETRODOTOXIN GALACTOPYRANOSIDES

摘要

Novel sodium channel blocking compounds tetrodotoxm galactopyranosides of formula I were isolated and purified by HPLC and identified further through IR, NMR, GC, and MS. The compounds have a galactopyranosyl moiety attached to C11 of tetrodotoxin and retain the analgesic activity of the latter. Pharmaceutical compositions and medical uses thereof are further disclosed.