U.S. patents available from 1976 to present.
U.S. patent applications available from 2005 to present.

Icon_funbox Famous Patents

In 1608, Dutch eyeglass maker Hans Lipperhey filed the first patent for a working telescope. The patent was denied.

Newsletter  PatentStorm News

Make the Most of Our Site

See this month's Top Inventors and Most Cited Patents.

Stay on top of the latest innovations by subscribing to an RSS feed.

Registered users: Manage your profile.

 

Class 544/223 - To two ring carbons


Subclass of Class 544 - Organic compounds -- part of the class 532-570 series
Definition: Compounds wherein divalent chalcogen (i.e., oxygen, sulfur,
No. of patents: 62
Last issue date: 06/28/2011


1    
NumberTitleIssue Date
7968710Prokineticin 1 receptor antagonists
The present invention relates to certain novel compounds of Formula (I): and methods for preparing these compounds, compositions, intermediates and derivatives thereof and for the treatment of prokineticin 1 or prokinetin 1...
06/28/2011
7902358Prokineticin 1 receptor antagonists
The present invention relates to certain novel compounds of Formula (I): and methods for preparing these compounds, compositions, intermediates and derivatives thereof and for the treatment of prokineticin 1 or prokinetin 1...
03/08/2011
7230100Stereoselective method for the preparation of nucleosides
A process for producing predominantly cis nucleosides or nucleoside analogues and derivatives of formula (A): wherein R1 is a pyrimidine base or a pharmaceutically acceptable derivative thereof and Q is oxygen, c...
06/12/2007
7193080Dye-forming coupler, silver halide photographic light-sensitive material and azomethine dye compound
A dye-forming coupler and compound of formula (I): wherein Q represents a residue that forms, together with —N—C═N—, a nitrogen-containing 6-membered ring; RA represents an aryl, heterocyclic, ...
03/20/2007
6831174Processes for preparing substituted 1, 3-oxathiolanes with antiviral properties
Disclosed are processes for preparing compounds of the formula (I) and pharmaceutically acceptable salts or esters thereof: wherein R2 is a purine or pyrimidine base or an analogue or derivative thereof; and...
12/14/2004
6780992Heterocyclic compounds, process for their preparation and pharmaceutical compositions containing them and their use in the treatment of diabetes and related diseases
The present invention relates to novel antidiabetic compounds, their tautomeric forms, their derivatives, their stereoisomers, their polymorphs, their pharmaceutically acceptable salts, their pharmaceutically acceptable solvates and pharmaceutically acceptable compo...
08/24/2004
6630578Thioether derivatives, their method for production and use
Novel dendritic molecules are provided which respond immediately by emission of light when stimulated with light or electric energy, and are useful, for example, as switching material of memory. The dendritic molecules have a core, a branch structure comp...
10/07/2003
6372435Methods of surveying for CC (Beta) chemokine receptor variants and their association with HIV-1 transmission and/or disease progression
The present invention provides methods of correlating genetic variants in the beta-chemokine receptor 5 (CCR5) locus, more specifically CCR5 promoter alleles and genotypes, with HIV-1 transmission and/or disease progression in individuals and populations....
04/16/2002
6258915Solid polyurethane hardeners having triazine groups, processes for preparing such compounds, and their use
Solid polyurethane hardeners (curing agents) having triazine groups, are prepared by reacting polyaddition compounds with a second compound having a >C.dbd.N-- group. The polyaddition compounds are prepared by reacting a uretdione-functional polyisocyanat...
07/10/2001
6251829Herbicidal benzoyloxy carboxylates and carboxamides
This invention relates to herbicidal alpha-(2,4,5-trisubstituted)- and alpha-(2,5-disubstituted)-benzoyloxy-alpha-beta-, and/or beta-gamma-unsaturated-carboxylates and their derivatives, to compositions which contain these compounds, and to methods of use...
06/26/2001
6136827Cyclic amine modulations of chemokine receptor activity
The present invention is directed to cyclic amines of the formula I: ##STR1## (wherein R1, R2, R3, m and n are defined herein) which are useful as modulators of chemokine receptor activity. In particular, these compou...
10/24/2000
6124308Optically active phenyl pyrimidine derivatives as analgesic agent
A pyrimidine of formula (I) ##STR1## and its pharmaceutically acceptable acid addition salts are useful as analgesics, as anticonvulsants or in the treatment of irritable bowel syndrome or bipolar disorder....
09/26/2000
6090940Method for producing potassium oxonate
A method for producing potassium oxonate which comprises dissolving allantoin in an aqueous potassium hydroxide solution or an aqueous potassium carbonate solution, and oxidizing said allantoin with an alkali metal hypohalogenite in the presence of potass...
07/18/2000
6057444Process for the preparation of phenyldichloro-1,3,5-triazine compounds
A process is described for the preparation of an aryl-1,3-5-triazine compound of formula (1). This process comprises reacting an aldehyde compound of formula (2) with biuret, compound of formula (3), in hydrochloric medium or with methyl sulfate (1st...
05/02/2000
5968482଱-hydroxyketoalkyl derivatives as light protection filters
The invention relates to the use of ଱-hydroxyketoalkyl derivatives as light protection filters for cosmetic or pharmaceutical products, the ଱-hydroxyketoalkyl group being linked, if appropriate via a spacer, to a chromophoric group which has a...
10/19/1999
5962683Oxazoline compounds as stabilizers
A description is given of compounds of the formula I ##STR1## where r is 0 or 1 and y is a number from the range 1-3; X is a direct bond or --NR8 --, --CO--, --CONH-- or --COO-- or a divalent aliphatic or mixed aromatic-aliphatic C1
10/05/1999
5874382Cyclic sulfonamide herbicides
Compounds of Formula I and II, and their agriculturally-suitable salts, are disclosed which are useful for controlling undesired vegetation ##STR1## wherein X is a direct bond; O; S; NH; N(C1 -C3 alkyl); N(C1 -C3...
02/23/1999
5804583Pyrimidinone derivatives fused to nitrogen heterocycles having a II antagonistic activity
Derivatives of bicyclic heterocycles comprising a pyrimidone ring fused to another 5, 6, or 7 membered nitrogen heterocycle which is C-substituted, through a methylene bridge, by a biphenyl group....
09/08/1998
5658933Substituted heterocyclic carboxamide esters, their preparation and their use as pharmaceuticals
The invention relates to compounds of the formula I, ##STR1## to a process for their preparation and to their use as pharmaceuticals. The compounds are employed, in particular, as ester prodrugs of prolyl hydroxylase inhibitors for inhibiting collage...
08/19/1997
5567670Herbicides for citrus oil palm rubber and other plantation crops
This invention provides herbicides for use in plantation and specialty crops; and further provides novel substituted heterocyclic compounds, their agriculturally suitable compositions, and methods of using these compounds as preemergent or postemergent he...
10/22/1996
5389599Substituted heterocyclyltriazinediones
The invention relates to new substituted heterocyclyltriazinediones of the general formula (I) ##STR1## in which R1 represents hydrogen or an in each case optionally substituted radical from the series comprising alkyl, alkenyl, alkinyl or...
02/14/1995
5232924Heterocyclic compound having serotonine 2-receptor antagonistic activity
A heterocyclic compound represented by formula (I): ##STR1## wherein R1 represents a hydrogen atom, an alkyl group, an aryl group which may be substituted with one or more substituents selected from the group consisting of a halogen atom, ...
08/03/1993
5084459Tetrahydropyrimidines, their production and use
There is provided a pest control composition containing a compound represented by the formula, ##STR1## wherein R1, R2, R3 and R4 are the same or different and independently mean a hydrogen atom, a hydrocar...
01/28/1992
5043443Aminomethyloxooxazolidinyl arylbenzene derivatives
Novel aminomethyloxooxazolidinyl arylbenzene derivatives, wherein the aryl includes the phenyl, substituted phenyl, pyridyl, and substituted pyridyl groups, such as (l)-N-{3-[4- (4'-pyridyl)phenyl]-2-oxooxazolidin-5-ylmethyl}acetamide, possess useful ...
08/27/1991
5034528Compositions for the control of hyperlipidemia
The invention provides pharmaceutical compositions comprising hypolipidemically active derivatives of 1,2,4-triazolidine-3,5-diones, 1,3,5-triazabicyclo[3.1.0]hexane-2,4-diones, and 1,3,5-triazine-2,4(1H,3H)-diones in a pharmaceutically acceptable carrier...
07/23/1991
4975434Antiviral and anticancer cyclopentenyl cytosine
Cyclopentenyl pyrimidine compounds have potent anti-viral, anti-tumor and differentiating activity. Of these compounds, cyclopentenyl cytosine has proved to be particularly effective in a variety of tumors, as well as having good antiviral activity and po...
12/04/1990
49686903-deazaneplanocin, intermediates for it, and antiviral composition and method of treatment using it
The new compound 3-deazaneplanocin A has been discovered to have potent anti-viral, anti-tumor activity and differentiating activity. A simple method for preparing 3-deazaneplanocin A has been developed involving nucleophilic substitution, which method ca...
11/06/1990
4935423Substituted 1,2,4-triazinediones, processes for their preparation and their use
A substituted, 1,2,4-triazinedione of the formula ##STR1## in which R1 stands for an unsubstituted or substituted heteroaromatic radicals bonded via carbon, X stands for one or more, identical or different radicals selected from the group ...
06/19/1990
4783531Production of S-substituted isothioureas
In the production of an S-substituted isothiourea including the functional group ##STR1## in which R1 is an alkyl, alkenyl, aryl or aralkyl radical, wherein a thiourea including the functional group ##STR2## is reacted with an et...
11/08/1988
4725684Synthesis of urea cyanurate
A process for producing urea cyanurate which comprises reacting an aqueous solution of urea with cyanuric acid at a temperature below the melting point of urea provides reaction conditions which minimize urea decomposition and are energy efficient. The ur...
02/16/1988
4684728Solubilizing biologically active compounds with reactive hydrogen atoms
A biologically active compound can be solubilized by reaction in different sequences to form a derivative carrying the active moiety, a linking group such as an optionally substituted diisocyanate radical, a polyether moiety such as a polyoxyethylene radi...
08/04/1987
4666902Tetrahydropyridazinone derivatives, processes for their preparation and their use
Tetrahydropyridazinones of the formula I ##STR1## wherein R denotes an optionally substituted carbocyclic or heterocyclic radical, R1 denotes hydrogen; alkyl; aralkyl, which is optionally substituted in the aryl part; or acyl, and R2
05/19/1987
4659819Production of S-substituted isothioureas
In the production of an S-substituted isothiourea including the function group ##STR1## in which R1 is an alkyl, alkenyl, aryl or aralkyl radical, wherein a thiourea including the functional group ##STR2## is reacted with an eth...
04/21/1987
4524205Process for the preparation of 1-amino-1,3,5-triazine-2,4(1H,3H)-diones
A process for the preparation of a herbicidally active 1-amino-1,3,5-triazone-2,4 (1H,3H)-dione of the formula ##STR1## comprising in a first stage at a temperature from about 0° to 100° C. reacting an isocyanate of the formula with an isothio semi...
06/18/1985
4518761Process for the preparation of mixed trimers from organic isocyanates, the mixed trimers obtained according to the process and the use thereof for the production of polyurethanes
The present invention is directed to a new process for the preparation of mixed trimers by at least partly trimerizing the isocyanate groups of at least two organic isocyanates of a reactivity which differs in the sense of the trimerization reaction, in t...
05/21/1985
4500345Isoxazolotriazindiones and plant growth inhibiting use thereof
Certain isoxazolotriazinediones, useful for controlling the growth of unwanted plants....
02/19/1985
4476303Thiazolino-[3,2-a]-1,3,5-triazine-2-one-4-(one or thione) derivatives
Compounds having the formula ##STR1## wherein R1 denotes hydrogen atom, halogen group atom or methyl radical, R2 denotes cyclohexyl radical, phenyl radical or phenyl radical substituted with methyl radical or nitro radical, and ...
10/09/1984
4447635N-Substituted imido-dicarboxylic acid diaryl ester compounds and herbicide intermediates
Novel N-substituted imido-dicarboxylic acid diaryl ester compounds of the general formula ##STR1## in which R1 represents an optionally substituted aliphatic, cycloaliphatic, araliphatic, aromatic, heterocyclic radical and R2 an...
05/08/1984
4426523Preparation of 1-amino-1,3,5-triazine-2,4(1H, 3H)-diones
Herbicidal 1-amino-1,3,5-triazine-2,4(1H, 3H)-diones of the general formula ##STR1## are obtained in good yields if an N-substituted O-aryl N-chlorocarbonyl carbamate of the general formula ##STR2## is reacted with an isothiosemicarbazone of the...
01/17/1984
4356024Process for the preparation of 1-amino-1,3,5-triazine-2,4(1H, 3H)-dione compounds
A process for the preparation of a 1-amino-1,3,5-triazine-2,4(1H, 3H)-dione compounds comprising the steps of reacting an N-substituted imido-dicarboxylic acid diaryl ester with an isothiosemicarbazone at a temperature of between 50° and 150° C. to form...
10/26/1982
1    
 
Sign InRegister
Username  
Password   
forgot password?