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Class 549/21 - Chalcogen or nitrogen attached directly to the hetero ring by nonionic bonding


Subclass of Class 549 - Organic compounds -- part of the class 532-570 series
Definition: Compounds wherein nitrogen or chalcogen (i.e., oxygen, sulfur,
No. of patents: 98
Last issue date: 02/21/2012


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NumberTitleIssue Date
8119820Method of preparing sultines
A method of preparing a sultine from a dihalogeno compound. The method comprises the steps of reacting the dihalogeno compound with a hydroxymethanesulfinate salt in a DMSO solvent so as to prepare the sultine. ...
02/21/2012
7385067Process for the preparation of compounds having a CFO bridge
The invention relates to a process for the preparation of compounds containing at least one —CF2—O— bridge in the molecule, in which a) an acid is added onto at least one ketene dithioketal, b) the...
06/10/2008
7109343Metal catalysts and methods for making and using same
Compounds having the formula: are disclosed. M1 and M2 are the same or different and are transition metal atoms or ions; Z2 and Z3, independently, are the atoms necessa...
09/19/2006
7087548Preparation and use of a heterogeneous rhodium catalyst for the hydrogenation of a double bond of an α-β-unsaturated carbonyl compound
A process for preparing an Rh-based catalytic system heterogenized on an organic or mineral support, characterized in that: a) a rhodium derivative with a valency state>0 is reduced in an ether or aromatic solvent and in the presence of a compound chosen from the gr...
08/08/2006
7030051Dirhodium catalyst compositions and methods for using same
Disclosed is method for increasing the efficiency of a dirhodium catalyst. The method includes providing a dirhodium catalyst, providing an organic ester, and contacting the dirhodium catalyst and the organic ester under conditions effective to increase the efficien...
04/18/2006
6916346Primary intermediates for oxidative coloration of hair
Primary intermediates for hair coloring compositions for oxidative dyeing of hair are compounds of the formula (1): wherein R is selected from C1 to C5 alkyl or hydroxyalkyl, a C3 to C
07/12/2005
6875894Bis(alkylthio)carbenium salts
The invention relates to bis(alkylthio)carbenium salts of the formula I with the stated definitions for R1, R2, R3 and Y−, and to a process for the preparation th...
04/05/2005
6787062Producing liquid crystals with CF2O bond
The invention relates to a process for the preparation of compounds having at least one —CF2O— bridge in the molecule, which comprises initially reacting a bis(alkylthio)carbenium salt with a compound containing at least one hydroxyl group in the pres...
09/07/2004
6706891Process for the preparation of ligands for olefin polymerization catalysts
Processes for the preparation of 4,5-bisimino-[1,3]dithiolanes and 2,3-bisimino-[1,4]dithianes are described. The processes involve conversion of an oxalamide to a dithiooxalamide, followed by conversion of the dithiooxalamide to either a 4,5-bisimino-[1,3]dithiolan...
03/16/2004
6664287Antioxidants
This invention comprises administering to a human or animal in need of treatment an effective amount of an antioxidant lipoic acid derivative and/or pharmaceutically acceptable salts and solvates thereof for the treatment or prevention of pathological (in...
12/16/2003
6472488(Thio) (meth) acrylate monomers, intermediate compounds for the synthesis of these monomers, polymerizable compositions and polymers obtained, and their optical and ophthalmic uses
Polymerizable compositions from novel monomers that correspond to the formula: ##STR1## in which: Z represents H or CH3 and X represents O or S, and Y is a 5- to 8-membered heterocycle consisting of hydrogen, carbon and sulphur atoms and at lea...
10/29/2002
64071361,4-dithiin and 1,4-dithiepin-1,1,4,4, tetroxide derivatives useful as antagonists of the human galanin receptor
The invention is directed to 1,4-dithiin- and 1,4-dithiepin-1,1,4,4-tetroxide derivatives useful as galanin receptor antagonists for treating disorders of the central nervous system. Pharmaceutical compositions comprising the compounds of the present ...
06/18/2002
6369071Nitric oxide donors and pharmaceutical compositions containing them
An organic compound is provided which contains at least one nitric oxide donor group and at least one group being, or being adapted to be converted in vivo to a free sulfhydryl group. A preferred compound contains at least one sulfhydryl group, either in ...
04/09/2002
6307062(Thio) (meth) acrylate monomers, intermediate compounds for the synthesis of these monomers, polymerisable compositions and polymers obtained, and their optical and ophthalmic uses
The novel monomers correspond to the formula: ##STR1## in which: Z represents H or CH3 and X represents O or S, and Y is a 5- to 8-membered heterocycle consisting of hydrogen, carbon and sulphur atoms and at least two endocyclic sulphur atoms....
10/23/2001
6046228Anti-viral pharmaceutical compositions containing saturated 1,2-dithiaheterocyclic compounds and uses thereof
The present invention is directed to pharmaceutical compositions including a saturated 1,2-dithiaheterocyclic compound having antiviral activity. The present invention also provides a kit containing the pharmaceutical composition and methods of treating o...
04/04/2000
6043361Polymerisable monomers and polymers
The invention relates to compounds of the formulae: processes for their preparation, polymers, co-polymers or block co-polymers containing them or their use as monomers or co-monomers in free radical polymerisation and in the manufacture of adhesives, den...
03/28/2000
6034087Nucleoside derivatives and process for preparing thereof
Nucleoside derivatives represented by formula (I); ##STR1## wherein, R1 represents hydrogen, phosphate or phosphonate group, R2 represents substituted or unsubstituted pyrimidine or purine base, and Z represents S, SO, SO2
03/07/2000
6025502Enantopselective synthesis of methyl phenidate
The invention relates to an enantioselective method of making methylphenidate and derivatives thereof. The method involves use of a rhodium catalyst, and selectively produces the D-enantiomer of the methylphenidate derivative in excess of the L-enantiomer...
02/15/2000
5834508Ketone derivatives
A novel ketone derivative (I) which possesses a potent inhibitory activity against thiol protease such as papain, cathepsin B, cathepsin H, cathepsin L, calpain or the like with excellent properties regarding oral absorbance, tissue transference and cell ...
11/10/1998
5698580Antiviral agent containing benzodithiin derivative as active ingredient
Antiviral agents comprising, as an active ingredient, a 1,4-dihydro-2,3-benzodithiin derivative of the formula ##STR1## wherein each symbol is as defined in the Specification, or a pharmacologically acceptable salt thereof. The antiviral agents of th...
12/16/1997
5676884Nonlinear optical materials containing polar disulfone-functionalized molecules
Nonlinear optical (NLO) compositions are disclosed which contain polar disulfone-functionalized molecules (PDFMs) incorporated in a polymeric material. when aligned noncentrosymmetrically in the polymeric material, the PDFMs generate a second-order NLO re...
10/14/1997
5674894Amidine derivatives useful as platelet aggregation inhibitors and vasodilators
The current invention discloses novel amidine derivatives with nitric oxide donating property that can inhibit platelet aggregation and promote vasodilation in a single compound....
10/07/1997
5543433Azine-substituted phenylacetic acid derivatives and fungicides containing these
Compounds of the formula I ##STR1## where X is hydrogen, halogen, alkyl, alkoxy, trifluoromethyl, cyano or nitro, Y is an amino, methylamino or dimethylamino group, Z is a group CHCH3, CHOCH3 or NOCH3, R is hydrogen or alk...
08/06/1996
5514642Cyclohexenone oxime ethers, their preparation and their use
Cyclohexenone oxime ethers of the formula I ##STR1##...
05/07/1996
5508275Lipid-selective antioxidants and their preparation and use
Lipid-selective antioxidants of the formula I (A)a (L)(X)a, (I), in which A=an antioxidative component, L=a bridging member, X=a lipophilic component a and a'=independently of one another the numbers 1 or 2. The c...
04/16/1996
5453518Flavone derivatives
A compound of the general formula: ##STR1## wherein X represents --CO--, --COO--, --CONH--, --CON(CH3)--, --CH2 NH--, --CH2 N(CH3)--, --CH2 NHCO--, --CH2 N(CH3)CO--, --CH
09/26/1995
5360815Heteroaryl cinnamic acids as inhibitors of leukotriene biosynthesis
Compounds having the formula I: ##STR1## are inhibitors of leukotriene biosynthesis. These compounds are useful as anti-asthmatic, anti-allergic, anti-inflammatory, and cytoprotective agents. They are also useful in treating angina, cerebral spasm, ...
11/01/1994
5296611Propenals substituted with a dithiane ring and processes for the preparation of these propenals
Propenals of formula: ##STR1## in which formula R is H or a C1 -C4 thioalkyl radical, the dithiane ring being at the cis position in relation to the aldehyde function when R is H and at the trans position when R is a thioalkyl ...
03/22/1994
5296505Compositions of retinoids substituted with a dithiane ring, their use, and process for preparing the compounds
The invention relates to a stereospecific derivative of formula: ##STR1## in which R is hydrogen or a C1 -C4 thioalkyl. The invention also relates to the use of these compounds for the manufacture of stereospecific retinal or re...
03/22/1994
5264455Sulfur-substituted mevinic acid derivatives
X is hydrogen or --S(O)m --R1 and Y is hydrogen or S(O)n --R2, except that X and Y are not both hydrogen, or one of X and Y is --S--alkyl--SH and the other is hydrogen; ##STR2## and the remaining symbols ar...
11/23/1993
5227398Benzodioxole derivatives and hepatopathy improvers comprising the same
Hepatopathy improvers contain as an effective ingredient one or more of benzodioxole derivatives represented by the following formula: ##STR1## wherein A means a particular N- or S-containing group. Most of these benzodioxole derivatives are novel....
07/13/1993
5098928Ketendithioacetal derivatives and pharmaceutical compositions containing the same
The ketenedithioacetal derivatives of formula (I) have a potent hypolipidemic and anti-arteriosclerotic effect and are useful for prophylaxis and treatment of arteriosclerosis or hyperlipidemia....
03/24/1992
5049673Fluorescent indicator dyes for calcium working at long wavelengths
The present invention discloses a new class of calcium specific fluorescent indicator dyes having visible excitation and emission wavelengths. The new fluorescent indicator dyes combine at least one tricyclic chromophore with a tetracarboxylate parent CA
09/17/1991
50323123E-cyclohexylalkoxy derivatives
Compounds of the formula ##STR1## wherein R1 denotes a group R3 or R3 --A4 --Z3 -- and R2 denotes a group R4 or --Z4 --A5 --R4 ; m and n eac...
07/16/1991
4996316Process for the preparation of tertiary N, N-dimethylamines
A process for the preparation of tertiary N,N-dimethylamines by the reaction of primary amines, formaldehyde, and hydrogen under pressure and at elevated temperature in the presence of a nickel-containing hydrogenation catalyst in the liquid phase. The hy...
02/26/1991
4988459Use of optically active oxirane-2-carboxylic acid esters as dopants in liquid-crystal mixtures, liquid-crystal mixtures containing same and novel optically active oxirane-2-carboxylic acid esters
Optically active oxirane-2-carboxylic acid esters with a mesogenic molecular component suitable as dopants in liquid-crystal mixtures. They result in liquid-crystalline ferroelectric phases with short switching times and in electroclinic phases with large...
01/29/1991
4985411Dialkyl-substituted dithianes and pesticidal compositions
The present invention provides compounds of the formula (I): ##STR1## wherein m and n are independently selected from 0, 1 or 2, ##STR2## R is selected from hydrogen, methyl or ethyl; R1 is selected from C1-4 hydrocarbyl su...
01/15/1991
49468611,3-dithian-2-ylidenes, their oxides, pharmaceutical compositions, and methods of use thereof
The invention relates to the use of ketenethioacetals of the formula ##STR1## in which R1 represents aryl or heteroaryl, R2 represents hydrogen, an optionally substituted hydrocarbon radical, heteroaryl, an acyl radical, a group...
08/07/1990
4927845Compounds of the anthraquinone series
Anthralin analogues containing a thio-substituent, especially in one or more of the positions 2-, 7- and 10- of the anthralin ring. They may be made by reacting an anthralin derivative (e.g. 10-bromoanthralin) with a thiol or a compound containing a group...
05/22/1990
4925590Derivatives of 4-cyano-2,3-difluorophenol
Derivatives of 4-cyano-2,3-difluorophenol of the formula I ##STR1## wherein R1 is an alkyl group which has 1-12 C atoms and in which one or two CH2 groups can also be replaced by --O--, --CO--, --CO--O-- and/or --CH.dbd.CH--, no...
05/15/1990
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