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Class 549/393 - Having -C(=X)-, wherein X is chalcogen, bonded directly to the tricyclo ring system


Subclass of Class 549 - Organic compounds -- part of the class 532-570 series
Definition: Compounds in which a -- group, wherein X is chalcogen (i.e.,
No. of patents: 47
Last issue date: 02/05/2008


1    
NumberTitleIssue Date
7326447Benzochromene derivatives
The present invention relates to benzochromene derivatives of the formula I in which the various parameters are as defined in the text, and to liquid-crystal media which comprise these compounds, and to the use o...
02/05/2008
7285672Process for isolating of α-mangostin
The invention relates to a process for obtaining and purifying pure α-mangostin from the rind of the fruit (mangosteen) of Garcinia mangostana. ...
10/23/2007
7261912Method of producing useful products from seawater and similar microflora containing brines
A process is provided for the recovery of useful products, including fertilizers and nutritional supplements, from the organic matter and minerals contained in seawater and other brines. The dissolved organic carbon-based chemicals and suspended particulate carbon-b...
08/28/2007
7083813Methods for the treatment of peripheral neural and vascular ailments
Compositions and methods for the treatment of peripheral neural and vascular ailments are disclosed. The method comprises administering a flavonoid compound with antioxidant properties, optionally formulated in a acceptable carrier. This compound or combination of c...
08/01/2006
7019024Pharmaceutical for treatment of neurological and neuropsychiatric disorders
The invention provides a pharmaceutical for treatment of neurological and neuropsychiatric disorders comprising a compound of the formula: or a pharmaceutically acceptable salt thereof. ...
03/28/2006
6740756Fluorescent lanthanide chelates
The present invention provides complexing agents of Formula I which contain novel photosensitizers and produce long-lived fluorescence for use in bioaffinity assays, especially HTRF (homogeneous time-resolved fluorescenc...
05/25/2004
6458974Synthesis of ଲ-lapachone and its intermediates
A novel process for synthesizing ଲ-lapachone (beta-lapachone), an agent that has demonstrated significant antineoplastic activity against human cancer lines. The process comprises the conversion of starting material, 2-hydroxy-1,4-naphothoquinone in...
10/01/2002
6384045Tricyclic and tetracyclic pyrones
This invention provides cancer-active tricyclic and tetracyclic oxypyrones and a method of synthesizing these compounds. Preferred compounds have aryl groups at the 3-position of the oxypyrone ring. The tricyclic oxypyrone synthetic method is a simple con...
05/07/2002
6204396Method for producing calcium fulvate from humus material
A method produces calcium fulvate from naturally-occurring humus material, such as leonardite, or humic shales. The humus material containing solid fulvic acid and solid humic acid is mixed with water and sodium hydroxide for a first selected period of ti...
03/20/2001
6147229Method for producing magnesium fulvate from humus material
A method produces magnesium fulvate from naturally-occurring humus material, such as leonardite, or humic shales. The humus material containing solid fulvic acid and solid humic acid is mixed with water and sodium hydroxide for a first selected period of ...
11/14/2000
5977077Xanthone analogs for the treatment of infectious diseases
Therapeutic compositions for the treatment of infectious diseases are disclosed. These compositions comprise xanthones and xanthone derivatives, such as 2,3,4,5,6-pentahydroxyxanthone. Also disclosed are methods for the treatment of infectious diseases us...
11/02/1999
5958970Tricyclic and tetracyclic pyrones
This invention provides cancer-active tricyclic and tetracyclic oxypyrones and a method of synthesizing these compounds. Preferred compounds have aryl groups at the 3-position of the oxypyrone ring. The tricyclic oxyprone synthetic method is a simple cond...
09/28/1999
5763625Synthesis and use of ଲ-lapachone analogs
3-Substituted-ଲ-lapachone analogs and their use either alone or to augment chemotherapy or radiotherapy to induce programmed neoplastic cell death without exhibiting toxicity to surrounding normal cells are disclosed. In particular, 3-allyl-ଲ-...
06/09/1998
5726208Heterocyclic tertiary amines
New compounds of formula: ##STR1## wherein: --A--D--E, X, n, Y and Z are as defined in the description, in racemic form and in the form of optical isomers, and their addition salts with pharmaceutically acceptable acids. Those compounds may be used as med...
03/10/1998
5672621Carbonarin antiinsectan metabolites
Carbonarins A, B, C, D, E, F, G, and H have been isolated from the sclerotia of the fungus Aspergillus carbonarius. The carbonarius are effective for controlling Coleopteran and Lepidopteran insects. The carbonarins have the structure: ##STR1## ...
09/30/1997
5633357Synthesis of carboxylic acid glucuronides
A method of producing a carboxylic acid glucuronide by reacting a carboxylic acid precursor with a blocked sugar epoxide precursor is disclosed. Also disclosed are: deuterated 11-nor-Ɗ8 - or Ɗ9 -THC carboxylic acid glucuronide havi...
05/27/1997
5623080Fluorone and pyronin Y derivatives
A compound of the formula (I) or (II): ##STR1## where R1, R2, R5 and R6 are the same or different and represent a hydrogen atom or a halogen atom and R1 and R2 may combine to form a ri...
04/22/1997
5597943Phospholipase A2 inhibitor
The present invention relates to the new thielocin derivatives, which exhibit phospholipase A2 inhibitory activity of the formula: ##STR1## wherein R1, R2, R3, R4, R5, R6, R...
01/28/1997
5563278Angiotensin II antagonists
This invention provides novel phenyl and heterocyclic derivatives, their pharmaceutical formulations and their use for antagonizing angiotensin II receptors in mammals....
10/08/1996
5011952Phospholipase A2 inhibitor
A compound of the formula: ##STR1## wherein the wave line means ଱-bond or ଲ-bond, which compound is useful as a phospholipase A2 inhibitor. Process for the production of the compound, pharmaceutical composition containing the c...
04/30/1991
4996230Leukotriene antagonists
This invention provides tricyclic derivatives which are leukotriene B4 antagonists, formulations of those derivatives, and a method of using those derivatives for the treatment of conditions characterized by an excessive release of leukotrienes...
02/26/1991
4927849Sulfonamido derivatives inhibiting the aldose reductase enzyme system and pharmaceutical compositions containing them
The xanthosulfonamido and benzensulfonamido derivatives corresponding to the formula: ##STR1## wherein x represents hydrogen, alkyl, alkoxy or halogen, Y represents an alkyl, alkoxy or halogen and Z represents the group ##STR2## or Y and Z ...
05/22/1990
4691059Copolymerizable UV stabilizers
This invention describes UV-stabilized step growth polymers such as polyesters, polyurethanes, polycarbonates, and combinations thereof. The UV-stabilizing moieties present in these polymers comprise chemically bound, pendant ortho-hydroxydiphenyl ketone ...
09/01/1987
4628087Process for the preparation of pharmacologically active compounds containing a sulfoxide group
Process for the preparation of pharmacologically active compounds containing a sulfoxide group by oxidation of a thioether with hypochlorite in an alkaline medium at a pH higher than 10 and at a temperature comprised between 0° and 40° C....
12/09/1986
4585876Novel xanthones and thioxanthones
Novel xanthones and thioxanthones of the formula I ##STR1## in which A, X, Y, Z, E and E' are as defined in patent claim 1, are described. A is preferably --S-- and E and E' are preferably bonded in the ortho-position relative to one another. The com...
04/29/1986
4556651Secalonic acid derivatives as antitumor agents
A secalonic acid derivative of the formula (I); ##STR1## wherein R is ##STR2## wherein R1 and R2 each independently is a hydrogen atom or a C1-4 alkyl group; R3 is a hydrogen atom, a C1-4 al...
12/03/1985
4496447Aromatic-aliphatic ketones useful as photoinitiators
Compounds of the formula ##STR1## wherein A, X, Z, R1, R2, R3, R4, n and m are defined hereinbelow are effective photoinitiators especially for the photopolymerization of ethylenically unsaturated compounds...
01/29/1985
4424373Secalonic acids
Secalonic acids having a 2,4'-linkage of the formula (I) or a 4,4'-linkage of the formula (II). ##STR1## ....
01/03/1984
4290954Tetrahydroxanthone derivatives
A tetrahydroxanthone derivative represented by the general formula: ##STR1## wherein R is a hydrogen atom, a hydroxyl, cyano, lower alkyl, lower alkoxy, lower acyloxy, benzoyloxy or tetrazolyl group, or ##STR2## (R3 is a hydrogen atom...
09/22/1981
4250097Compositions for and a method of preventing diabetic complications
Compositions containing and methods of employing as the essential ingredients substituted xanthone carboxylic acid compounds which are useful in the prevention of complications of diabetes. Methods for preparing these compounds and the compositions and in...
02/10/1981
4242267Process for preparing 5-alkyl-7-(S-alkyl-sulfonimidoyl)-xanthone-2-carboxylic acids
A novel process for the preparation of xanthane-2-carboxylic acids of the formula ##STR1## wherein R is selected from the group consisting of hydrogen and alkyl of 1 to 9 carbon atoms and R1 is alkyl of 1 to 5 carbon atoms which posse...
12/30/1980
4221800Cycloalkenochromone
Certain substituted cycloalkenochromones and pharmacologically acceptable salts thereof are disclosed as being useful in the treatment of allergies. The compounds have the structure: ##STR1## X is --O--, --S--, or --SO2. Y is from 1 to 4. ...
09/09/1980
4217361Disubstituted xanthone-2-carboxylic acid antiallergy agents
Compositions containing and methods employing, as the essential ingredient, novel substituted xanthone-2-carboxylic acid compounds which are useful in the treatment of allergic conditions. Methods for preparing these compounds and compositions and interme...
08/12/1980
4127573Ditetrazole substituted acridone compounds
Acridone and xanthone compounds substituted by at least one tetrazolyl group in one ring, and further substituted in the other ring, optionally for the acridones have antiallergic activity....
11/28/1978
4078078Novel xanthone-2-carboxylic acid compounds
Novel xanthone-2-carboxylic acid compounds of the formula ##STR1## wherein A is selected from the group consisting of --COOR', a 1H-tetrazol-5-yl and a 1H-tetrazolylcarbamoyl, R' is selected from the group consisting of hydrogen, alkyl of 1 to 5 carb...
03/07/1978
4061768Certain cyclic carbonyl compounds used in the prophylaxis of allergic conditions
A pharmaceutical composition and method for inhibiting the symptoms of allergic conditions such as asthma or allergic rhinitis which comprises administering a compound of the formula ##STR1## where Z2 is in the 6 position, wherein Z1
12/06/1977
4024276Xanthone-2-carboxylic acid compounds
Novel xanthone-2-carboxylic acid compounds of the formula ##STR1## wherein A is selected from the group consisting of --COOR', a 1H-tetrazol-5-yl and a 1H-tetrazolylcarbamoyl, R' is selected from the group consisting of hydrogen, alkyl of 1 to 5 carb...
05/17/1977
40072057-Substituted-9-oxoxanthene-2-carboxaldehydes
There are disclosed 7-substituted-9-oxoxanthene-2-carboxaldehydes of the formula: ##STR1## in which R is lower alkoxy or hydroxy. These compounds are indicated in the management of allergic manifestations such as, for example, bronchial asthma o...
02/08/1977
3989721Disubstituted xanthone carboxylic acid compounds
Compositions containing and methods employing, as the essential ingredient, novel disubstituted xanthone carboxylic acid compounds which are useful in the treatment of allergic conditions. Methods for preparing these compounds and compositions and interme...
11/02/1976
3989720Disubstituted xanthone carboxylic acid compounds
Compositions containing and methods employing, as the essential ingredient, novel disubstituted xanthone carboxylic acid compounds which are useful in the treatment of allergic conditions. Methods for preparing these compounds and compositions and interme...
11/02/1976
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