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6809101 |
Compounds having anti-hepatitis C virus effect
It is found out that compounds represented by the formula (I): wherein R 1 is an optionally substituted carbocyclic group or an optionally substituted heterocyclic group; and R 2 and R 3 ...
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6420568 |
Process for making 1,3-disubstituted-4-oxocyclic ureas
A process for making 1,3-disubstituted-4-oxocyclic ureas of general formula (I): wherein R 1 , R 2 , and R 3 are independently selected from the group consisting of nil, Cl, F, Br, NH 2 , NO 2 ,...
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6277997 |
Process for the preparation of chiral lactones
The present invention relates to a process for the preparation of compounds of formula I ##STR1## wherein R 1 and R 2 are as defined in the specification as well as to the novel intermediates...
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6051718 |
PDE IV inhibiting 2-cyanoiminoimidazole derivatives
The present invention concerns 2-cyanoiminoimidazole derivatives having the formula ##STR1## the N-oxide forms, the pharmaceutically acceptable addition salts and the stereochemically isomeric...
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5670647 |
Method for recovering optically pure amino acid derivatives
A method for recovering an optically pure amino acid derivative from a waste liquor collected after a coupling reaction in peptide synthesis, comprising the steps of (a) adding into the waste...
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5473079 |
Process for preparing 2-arylbenzimidazole-5-sulfonic acids
The invention relates to an improved process for preparing 2-arylbenzimidazole-5-sulfonic acids of the formula I, ##STR1## in which Ar is unsubstituted phenyl or phenyl substituted by one or more C...
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5444080 |
Substituted [1H-imidazol-5-ylialkanoic acids having angiotension II receptor antagonist activity
Angiotensin II receptor antagonists having the formula: ##STR1## which are useful in regulating hypertension and in the treatment of congestive heart failure, renal failure, and glaucoma,...
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5332832 |
Nitrofurantoin crystals
Nitrofurantoin particulates comprising discrete particulates of nitrofurantoin wherein: (a) said particulates are larger than about 200 mesh size; and (b) the BET surface area of said...
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5208250 |
Known and selected novel arylmethylenyl derivatives of thiazolidinones, imidazolidinones and oxazolidinones useful as antiallergy agents and anti-inflammatory agents
The present invention is for selected novel compounds, as well as, pharmaceutical compositions and methods of use for known and the selected novel compounds both of the formula ##STR1## having...
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5075301 |
Furan derivatives useful for the treatment of gastro-intestinal disorders
A furan derivative and a pharmaceutically acceptable salt thereof having gastrointestinal enterokinetic activity which is expected to be used in a broad spectrum of diseases associated with...
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5059237 |
Butenoic acid derivatives and use as herbicides
A butenoic acid derivative of the formula: ##STR1## which is useful as a herbicide.
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4958028 |
Process for the preparation of 5-substituted-3-phenyl imidazolidine-2,4-diones
This invention relates to 5-substituted-3-phenyl-imidazolidine-2,4-diones, to a process for their preparation and to their use in herbicidal formulations. In particular, this invention relates to...
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4914099 |
Hydantoin derivatives as aldose reductase inhibitors
The present invention relates to novel hydantoin derivatives, processes for producing said hydantoin derivatives, pharmaceutical compositions containing at least one of said hydantoin derivatives...
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4911748 |
Herbicidal 5-substituted-3-phenyl-imidazolidine-2,4-diones
This invention relates to 5-substituted-3-phenyl-imidazolidine-2,4-diones, to a process for their preparation and to their use in herbicidal formulations.
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4684735 |
Promotion of raney nickel hydrogenation catalyst
There is disclosed a number of processes for the promotion of the Raney Nickel catalyzed hydrogenation of carbon-carbon double bonds. (a) One process uses tertiary amines to promote the Raney...
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4680306 |
Sprio-imidazolones for treatment of diabetes complications
Spiro-imidazolones are disclosed which are useful as aldose reductase inhibitors and as therapeutic agents for the treatment of complications arising from diabetes. Pharmaceutical compositions...
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4650876 |
Hydrogenation of substituted, unsaturated hydantoins to substituted, saturated hydantoins
Unsaturated hydantoins are reduced to the corresponding saturated hydantoin by carrying out the hydrogenation reaction using a nickel catalyst in the presence of more than a stoichiometric amount...
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4582903 |
Synthesis of unsaturated hydantoins with an inexpensive catalyst
Alkylidene or arylidene substituted hydantoins are produced by condensation of an aromatic or aliphatic aldehyde with hydantoin in the presence of at least one basic salt of an inorganic acid. The...
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4543359 |
Treating cardiac arrhythmias with dantrolene sodium
Dantrolene sodium is useful as a cardiac antiarrhythmic agent in hypothermic and normothermic warm-blooded animals.
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4465840 |
Process for the production of (thio) hydantoins
This invention relates to a process for the production of compounds containing at least one (thio)-hydantoin ring in the molecule by reacting a carbodiimide with hydroxy- or mercapto-succinic acid...
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4465839 |
Process for the production of hydantoins
The invention relates to a process for the production of compounds containing at least one hydantoin ring by reacting a carbodiimide with derivatives of succinic acid anhydride corresponding to the...
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4452806 |
Treating diabetic complications with 5-(substituted phenyl)hydantoins
A series of 5-(substituted phenyl)hydantoins and pharmaceutically acceptable salts thereof are aldose reductase inhibitors useful as agents for treatment of chronic diabetic complications;...
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4345072 |
Process for the production of 5-arylidene hydantoins (B)
5-Arylidene hydantoins are produced by condensation of an aromatic aldehyde with hydantoin in the presence of at least one ammonium salt of an aliphatic or aromatic carboxylic acid. The desired...
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4281009 |
Hydantoin derivatives
New hydantoin derivatives, a process for the preparation thereof and pharmaceutical compositions containing the derivatives as active ingredients, particularly remedies for treatment of diseases...
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4169931 |
Process for the preparation of (thio)hydantoins substituted with amide groups
A process for the preparation of an amide-substituted (thio)hydantoin which comprises reacting a primary mono- or poly-amine with an optionally substituted maleic acid amide reacting the resulting...
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4163058 |
Derivatives of 5,5-diphenylhydantoin exhibiting enhanced solubility and the therapeutic use thereof
Novel derivatives of 5,5-diphenylhydantoin, having the formula: ##STR1## wherein R is as defined in the specification and claims hereinafter, are disclosed. These compounds exhibit enhanced...
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4089860 |
Preparation of hydantoins by reacting esters of ethylene-1,2-dicarboxylic acids and ureas and thioureas
A process for the preparation of (thio) hydantoins modified with carboxylic ester groups, wherein 1,2-ethylene dicarbocylic acid esters which may be substituted are reacted with (thio) urea...
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4001222 |
3-(Aminoacyl)-1-{[5-(substituted phenyl)furfurylidene]amino}hydantoins and process for their preparation thereof
A series of 3-(aminoacyl)-1-{[5-(substituted phenyl)furfurylidene] amino}hydantoins are useful as muscle relaxants. A process for their preparation is also described.
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3990896 |
Color photographic light sensitive element and method of forming color photographic images
A method of forming color photographic images which comprises developing an image-exposed photographic silver halide emulsion layer with a primary aromatic amino color developing agent in the...
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3843636 |
1-(5-(P-METHOXYPHENYL)FURFURYLIDENE)AMINO) HYDANTOIN
The title compound is a useful muscle relaxant.
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3681377 |
ISOTHIOCYANATOMETHYL AND THIOCYANATOMETHYL HYDANTOINS
Isothiocyanatomethyl and thiocyanatomethyl hydantoin derivatives corresponding to the following structure: ##SPC1## Wherein R 1 is one selected from the group consisting of C 1 -C 12 alkyl...
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3531477 |
WATER SOLUBLE ALKALI METAL SALTS OF 1 - (5' - NITROFURFURYLIDENEAMINO)-HYDANTOIN VINYLOGS
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3514451 |
NOVEL 2-SUBSTITUTED 5-NITROFURANS AND A PROCESS FOR THE PREPARATION THEREOF
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3494936 |
BENZENESULFONYL-UREAS WITH HYPOGLYCEMIC ACTIVITY
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3446802 |
3-HYDROXYMETHYL-1-(5-NITROFURFURYLIDENEAMINO) HYDANTOIN
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3429911 |
1-BIS(CYANOMETHYL)-3-PHENYLUREAS
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3427306 |
PROCESS FOR THE MANUFACTURE OF N-(5 - NITRO - 2 - FURFURYLIDEN) - 1 - AMINO-HYDANTOIN
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3415821 |
1-(5-substituted)furfurylideneamino hydantoins and imidazolidinones
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3410852 |
Process for preparing 3, 4-dihydro-2, 4-dioxo-2h-pyrido[2, 3-e][1, 3]oxazine
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3365296 |
LIGHT-SENSITIVE ULTRAVIOLET ABSORBING COMPOUNDS AND DIAZOTYPE MATERIALS CONTAINING THE SAME
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3317521 |
Process for the manufacture of n-(5'-nitro-2'-furfurylidene)-1-aminohydantoin
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3285928 |
Mercury derivatives of propyl-hydantoins
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3234220 |
Tasteless n-(5-nitrofurfurylidene)-1-aminohydantoin salts
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3182058 |
Nitrofuran derivatives
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3157645 |
3-alkenyl or alkinyl 1-(5-nitrofur-furylideneamino) hydantoins
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3154543 |
Preparation of 5-aminofurans
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3129223 |
3-nitro-furantoincarboxylic acid esters
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3110714 |
3-(2-cyanoethyl)-1-(5-nitrofurfurylideneamino) hydrantoin
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3110713 |
3-methoxymethyl-1-(5-nitrofurfurylideneamino) hydantoin
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3097202 |
3-[acetonyl; hydroxyethyl; and 2-(4-pyridyl)-ethyl]-1-(5-nitrofurfurylideneamino) hydntoin
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