摘要:
This invention relates to compounds of formula (IA), (IB), (IC) or (ID), wherein m, X, Z, R.sup.2, R.sup.3, R.sup.4, R.sup.5, R.sup.6, R.sup.14 and the dotted lines are as defined below, their pharmaceutically acceptable salts, pharmaceutical compositions containing them and methods of using them to treat Alzheimer's disease, age-associated memory impairment, Parkinson's disease and other central nervous system disorders. The claimed compounds have the ability to enhance the release of neurotransmitters such as acetylcholine, dopamine and serotonin. ##STR1##
摘要:
Polypeptides isolated from the venom of the Geolycosa riogrande spider form pores in the plasma membrane of cells and are effective in mobilizing intracellular calcium ions in cells. These polypeptides are useful in such areas as drug delivery, cancer chemotherapy and immunotherapy, as well as in the physiological study of cells.
摘要:
Polypeptides isolated from the venom of the Heteropoda venanoria spider 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.
摘要:
This invention relates to a polypeptide found to be present in the venom of the Agelenopsis aperta spider and to polypeptides having substantially the same amino acid sequence and substantially the same activity as said polypeptide. The polypeptides of this invention 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 polypeptides and salts thereof.
摘要:
This invention relates to certain polyamines 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. This invention also relates to compositions comprising said polyamines and salts thereof.
摘要:
Process and intermediates for the conversion of 3R,4R-4-acetoxy-3-[1R-1-(silyloxy)ethyl]-2-acetidinones to antibacterial 5R,6S-6-(1R-1-hydroxyethyl)-2-(1-oxo-3-thiolanylthio)-2-penem-3-carboxylic acids, and the pharmaceutically-acceptable salts and pivaloyloxymethyl esters thereof.
摘要:
A novel process is described for preparation of biotin comprising preparation of substituted 3H, 5H-imidazo[1,5c]tetrahydro thiazoles by contacting the boron trifluoride adduct of an appropriate thiazoline with the metallic derivative of an ester enolate, reducing the ester, hydrolyzing the thiazolidine moiety and hydrolyzing or oxidizing the resultant compound. Intermediates obtained in the preparation of biotin by the above process and alternate procedures for preparing said intermediates are also presented. A novel process for preparation of d-biotin is also given.
摘要:
The invention relates to fluoro-substituted adamantane derivatives of the formula ##STR1## and to pharmaceutically acceptable salts thereof, wherein R.sup.1, R.sup.2, R.sup.3, and R.sup.4 are as defined herein. The invention also relates to methods of treating neurological disorders, such as memory loss and Parkinson's disease, and bacterial and viral infections, through administration of a therapeutically effective amount of a compound of formula I. The invention also relates to a method of increasing the metabolic stability of an adamantane-containing pharmaceutical compound by incorporating a fluoro substituent on at least one bridge-head carbon of the adamantyl group of said adamantane-containing pharmaceutical compound
摘要:
Benzimidazole Derivatives having the formulae ##STR1## wherein B, Y, R.sup.1, R.sup.2, R.sup.3 and R.sup.4 are as defined in the specification. These compounds and their pharmaceutically acceptable salts are useful in the treatment of CNS and stress related disorders.
摘要:
This invention relates to a method of treating cancer by administering a compound of the formula wherein R.sup.1, R.sup.2, R.sup.3, R.sup.4, R.sup.5, E.sup.1, E.sup.2, p, Het' and Het" are defined as indicated in the specification.