Polyamines and polypeptides useful as antagonists of excitatory amino acid neuro-transmitters and/or as blockers of calcium channels
AssigneePfizer Inc.
InventorsNicholas A. Saccomano, Robert A. Volkmann
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AssigneePfizer Inc.
InventorsNicholas A. Saccomano, Robert A. Volkmann
Estimating the term…
This invention relates to certain polyamines and polypeptides found to be present in the venom of the Agelenopsis aperta spider. The polyamines of this invention and the salts thereof antagonize excitatory amino acid neurotransmitters, which neurotransmitters affect cells of various organisms and are useful in antagonizing said neurotransmitters, per se, in the treatment of excitatory amino acid neurotransmitter mediated diseases and conditions and in the control of invertebrate pests. The polypeptides of this invention and one of said polyamines and the salts thereof block calcium channels in cells of various organisms and are useful in blocking said calcium channels in cells, per se, in the treatment of calcium channel mediated diseases and conditions and in the control of invertebrate pests. This invention also relates to compositions comprising said polyamines, polypeptides and salts thereof.
A substantially pure compound of the formula ##STR60## and the pharmaceutically-acceptable salts thereof, wherein R is H or OH.
A substantially pure compound of the formula ##STR61## and the pharmaceutically-acceptable salts thereof.
A substantially pure compound of the formula ##STR62## and the pharmaceutically-acceptable salts thereof.
Dependencies are inferred from the claim text.