摘要:
An improved process for the preparation of (5R)-1,1-dimethylethyl-6-cyano-5-hydroxy-3-oxo-hexanoate is described where a halo hydroxyester or other activated dihydroxyester is converted in two steps to the desired product.
摘要:
An improved process for the preparation of trans-6-[2-(substituted-pyrrol-1-yl)alkyl]pyran-2-ones by a novel synthesis is described where 1,6-heptadien-4-ol is converted in eight operations to the desired products, as well as an improved process for the preparation of (2R-trans) and trans-(.+-.)-5-(4-fluoro-phenyl)-2-(1-methylethyl)-N,4-diphenyl-1-[2-(tetrahydro-4-hydroxy-6-oxo-2H-pyran-2-yl)ethyl]-1H-pyrrole-3-carboxamide by a novel synthesis where 4-methyl-3-oxo-N-phenylpentanamide is converted in eight operations to the desired product or alternatively 4-fluoro-.alpha.-[2-methyl-1-oxopropyl]-.gamma.-oxo-N,.beta.-diphenylbenzenebutaneamide is converted in one step to the desired product, and additionally, a process for preparing (2R-trans)-5-(4-fluorophenyl)-2-(1-methylethyl)-N,4-diphenyl-1-[2-(tetrahydro-4-hydroxy-6-oxo-2H-pyran-2-yl)ethyl]-1H-pyrrole-3-carboxamide from (R)-4-cyano-3-[[(1,1-dimethylethyl)dimethylsilyl]oxy]butanoic acid, as well as other valuable intermediates used in the processes.
摘要:
5-Oxo-2-pyrrolidinepropanoic acids, base addition salts, esters and amides are useful as agents for the reversal of amnesia. Pharmaceutical compositions containing said compounds and methods for using said compositions for treating senility and reversal of amnesia are also taught.
摘要:
Benzobicyclic lactam acids having a fused aromatic carbocyclic and a saturated lactam ring of five- or six-members, their salts, esters, and amides, are useful for reversing amnesia. Pharmaceutical compositions including these compounds, a method of preparing the compounds, and a method of treating senility and reversing amnesia are also disclosed.
摘要:
A class of novel saturated, fused-ring, tricyclic, nitrogen-containing diones are useful as agents in treating electro-convulsive shock-induced amnesia. A method of preparing the compounds, pharmaceutical compositions including the compounds, and a method of treating amnesia are disclosed.
摘要:
Hexahydro-3,5-dioxo-1H-pyrrolizine-2-carboxylic acid, its esters, ammonium, metal, and organic amine salts are useful for the treatment of senility, for enhancing memory, and for reversing electroconvulsive shock induced amnesia in humans. Pharmaceutical compositions including these compounds, and a method of treatment employing these pharmaceutical compositions is disclosed.
摘要:
3-Aryloxy-2-pyridinecarbonitrile 1-oxide compounds, which are useful as pharmacological agents, especially as agents for the reversal of amnesia, are disclosed. The compounds can be produced by oxidizing a 3-aryloxy-2-pyridinecarbonitrile.
摘要:
Pyridobenzodioxin compounds, which are useful as pharmacological agents, especially as agents for the treatment of senility and reversal of amnesia, and methods for their preparation are disclosed. Pharmaceutical compositions containing said compounds and methods for using said compositions in treating senility and reversal of amnesia are also taught.
摘要:
3-Phenoxypyridine monosulfate, a pharmacological agent possessing mood elevating and cardiotonic properties. This compound is produced by reacting 3-phenoxypyridine with an equivalent amount of sulfuric acid.
摘要:
Oral pharmaceutical compositions comprising 3-phenoxy-pyridine or pharmaceutically acceptable acid-addition salts thereof and a pharmaceutical carrier. Methods for inducing psychostimulation by administering 3-phenoxypyridine or a pharmaceutically acceptable acid-addition salt thereof.