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| Number | Title | Issue Date |
| 8183375 | Derivatives of 1,2-dihydro-7-hydroxyquinolines containing fused rings The present invention describes novel dyes, including coumarins, rhodamines, and rhodols that incorporate additional fused aromatic rings. The dyes of the invention absorb at a longer wavelength than structurally similar dyes that do not possess the fused aromatic r... | 05/22/2012 |
| 8044203 | Chiral indole intermediates and their fluorescent cyanine dyes containing functional groups This invention relates to the functionalized cyanine dyes and more particularly, to the synthesis of chiral 3-substituted 2,3′-dimethyl-3H-indole and its derivatives as intermediates for preparation of cyanine dyes, to methods of preparing these dyes and the dyes ... | 10/25/2011 |
| 7678907 | Halogenation of rylen-carboximides with elementary halogen in a two-phase mixture comprising an organic solvent and water, wherein formed halogen hydroxide is continuously removable from the organic solvent A process for preparing halogenated rylenecarboximides of the general formula I in which the variables are each defined as follows: A, B together are an imide radical or, in the case that ... | 03/16/2010 |
| 7408062 | Rigidized trimethine cyanine dyes Disclosed are analogues of trimethine cyanine dyes, which are useful for importing fluorescent properties to target materials by covalent and non-covalent association. ... | 08/05/2008 |
| 7361413 | Electroluminescent device and methods for its production and use A luminescent device comprises an electroluminescent phosphor in operative contact with a light-emitting material wherein excitation of the electroluminescent phosphor by an alternating current electrical field causes the emission of light by the light-emitting mate... | 04/22/2008 |
| 7303827 | Light-emitting phosphor particles and electroluminescent devices employing same Phosphor particles having coatings comprising certain light emitting small molecules and light-emitting devices employing these phosphor particles and light-emitting small molecules are provided. Also provided are light-emitting devices employing a layer of phosphor... | 12/04/2007 |
| 7169922 | Derivatives of 1,2-dihydro-7-hydroxyquinolines containing fused rings The present invention describes novel dyes, including coumarins, rhodamines, and rhodols that incorporate additional fused aromatic rings. The dyes of the invention absorb at a longer wavelength than structurally similar dyes that do not possess the fused aromatic r... | 01/30/2007 |
| 7029763 | Light-emitting phosphor particles and electroluminescent devices employing same Light-emitting substance-coated phosphor particles and light-emitting devices employing phosphor particles and light-emitting substances are provided. Also provided are light-emitting devices employing a layer of phosphor material that is covered by at least one lay... | 04/18/2006 |
| 7001639 | Electroluminescent devices fabricated with encapsulated light emitting polymer particles The present system provides electroluminescent devices including electroluminescent panels, and more specifically, electroluminescent devices fabricated from materials including light emitting polymers and particles comprising light emitting polymers that have been ... | 02/21/2006 |
| 6960667 | Fluorescent maleimides and uses thereof The present invention is directed to maleimides and preparation of compounds of the formula I wherein R1 and R2 independently from each other stand for | 11/01/2005 |
| 6727098 | Biaryl-type compounds, CD color fixing agent and method for determination of absolute configuration A novel achiral biaryl-type compound and a circular dichroism (CD) color fixing agent are provided. Furthermore, a method for determining an absolute configuration of a chiral compound is carried out by introducing the above achiral biaryl-type compound into the chi... | 04/27/2004 |
| 6716979 | Derivatives of 1,2-dihydro-7-hydroxyquinolines containing fused rings The present invention describes novel dyes, including coumarins, rhodamines, and rhodols that incorporate additional fused aromatic rings. The dyes of the invention absorb at a longer wavelength than structurally similar dyes that do not possess the fused aromatic r... | 04/06/2004 |
| 6699876 | Camptothecin analogue compounds Compound of formula (I): ##STR1## wherein: n is 0, 1 or 2, R1 represents (C3 -C11)cycloalkyl or (C3 -C11)cycloalkylalkyl, R2, R3, R4 and R5 are selec... | 03/02/2004 |
| 6689887 | Inhibition of human telomerase by a G-quadruplex-interaction compound Certain non-nucleoside compounds that will selectively inhibit telomerase by targeting the nucleic add structures, such as G-quadruplexes, that may be associated with human telomeres or telomerase have been identified. Inhibition of human telomerase by tw... | 02/10/2004 |
| 6646126 | Process for preparing perylene-3,4,9,10-tetracarboxylic diimide in transparent pigment form The present invention provides a process for preparing transparent perylimide pigments of the formula (I): ##STR1## in which u is a number from 0 to 8 and, if u>0, E is a chlorine or bromine atom and, where u>1, may be a combination thereof, which... | 11/11/2003 |
| 6525200 | Multicyclic aromatic compounds and uses thereof Multicyclic aromatic compounds useful as complexing agents having the general formula: ##STR1## Methods of complexing and quantitating a component in a sample such as urea or guanidine are also disclosed.... | 02/25/2003 |
| 6521756 | Process for preparing perylene-3,4,9,10-tetracarboxylic diimide in transparent pigment form The present invention provides a process for preparing transparent perylimide pigments of the formula (I) ##STR1## in which u is a number from 0 to 8 and, if u>0, E is a chlorine or bromine atom and, where u>1, may be a combination thereof, which comprise... | 02/18/2003 |
| 6258954 | Fluorescent maleimides and uses thereof The present invention relates to compounds of formula I ##STR1## provided that R1 and R2 not simultaneously stand for phenyl, the use thereof in, for example, electroluminescent devices and as void detection compounds.... | 07/10/2001 |
| 6248884 | Extended rhodamine compounds useful as fluorescent labels Extended rhodamine compounds exhibiting favorable fluorescence characteristics having the structure ##STR1## are disclosed. In addition, novel intermediates for synthesis of these dyes are disclosed, such intermediates having the structure ##STR2## I... | 06/19/2001 |
| 6165661 | Perylene compositions A mixture comprised of at least two perylenes and wherein the mixture includes symmetrical perylenes, unsymmetrical perylenes, and unsymmetrical perylenes with dissimilar R1 and R2 terminal substituents. The perylene mixtures can be ... | 12/26/2000 |
| 6156762 | Indolomorphinan derivative and agent for curing and preventing cerebral disorder The present invention provides an indolomorphinan derivative or a pharmacologically acceptable acid addition salt thereof, and an agent for curing and preventing cerebral disorders composed of the derivative and salt thereof, which is represented by the f... | 12/05/2000 |
| 6133445 | Rigidized trimethine cyanine dyes Disclosed are analogues of trimethine cyanine dyes which are useful for imparting fluorescent properties to target materials by covalent and non-covalent association. The compounds have the following general formula: ##STR1## optionally substitu... | 10/17/2000 |
| 6084099 | Preparation of N,N'-dialkylperylene-3,4,9,10-tetracarboxylic acid diimides Preparation of N,N'-di(C1 -C4 alkyl)perylene-3,4,9,10-tetracarboxylic acid diimides (I) by the reaction of perylene-3,4,9,10-tetracarboxylic acid diimide (II) with a C1 -C4 alkyl halide, in which the reaction is... | 07/04/2000 |
| 6063924 | Soluble chromophores containing solubilising groups which can be easily removed Compounds of formula A(B)x (I), wherein x is an integer from 1 to 4, A is the radical of a chromophore of the quinacridone, anthraquinone, perylene, indigo, quinophthalone, isoindolinone, isoindoline, dioxa... | 05/16/2000 |
| 5861411 | 4-Acylaminopyridine derivative A novel 4-acylaminopyridine derivative represented by the following formula (I) is disclosed. ##STR1## The 4-acylaminopyridine derivative of the present invention is useful as a medicine for treating disturbances of memory such as senile dementia and... | 01/19/1999 |
| 5852030 | Indole derivatives, process for producing the same and medicinal uses of the same A novel compound which is a δ-opioid antagonist having high selectivity and activity, that exhibits immunosuppressive action, antiallergic action, anti-inflammatory action and brain cell-protecting action is disclosed. The compound according to the prese... | 12/22/1998 |
| 5756744 | Unsymmetrical perylene dimers Photoconductive imaging members comprised of unsymmetrical dimeric perylene as a charge generator, wherein said perylene is of the following formula ##STR1## wherein R is hydrogen, alkyl, cycloalkyl, substituted alkyl, aryl, substituted aryl, aralkyl... | 05/26/1998 |
| 5622957 | Benzopyrrolizinoquinolizinones A compound selected from those of general formula (I): ##STR1## wherein A represents a bivalent radical ##STR2## and R1, R2, R3, R4, R6, R7, R8, R9 and Z are... | 04/22/1997 |
| 5536728 | 4-acylaminopyridine derivative A novel 4-acylaminopyridine derivative represented by the following formula (I) is disclosed. ##STR1## The 4-acylaminopyridine derivative of the present invention is useful as a medicine for treating disturbances of memory such as senile dementia and... | 07/16/1996 |
| 5397785 | 4-acylaminopyridine derivative A novel 4-acylaminopyridine derivative represented by the following formula (I) is disclosed. ##STR1## The 4-acylaminopyridine derivative of the present invention is useful as a medicine for treating disturbances of memory such as senile dementia and... | 03/14/1995 |
| 5352680 | Delta opioid receptor antagonists to block opioid agonist tolerance and dependence A motion provided to alleviate the tolerance to, or dependence on, an opiate analgesic, by the administration of an effective amount of a selective delta opioid receptor antagonist to a human patient in need of such treatment.... | 10/04/1994 |
| 5259988 | Polycyanamide compounds generating photoelectric current and process for their preparation A polycyanamide compound represented by the general formula (I): ##STR1## wherein A is ##STR2## X is an integer ranging from 10 to 30. This polycyanamide compound of the formula (I) is a photoelectric material and, in this respect, can be used ... | 11/09/1993 |
| 5194088 | Process for conditioning organic pigments A process for converting crude pigments into pigmentary form wherein the crude pigment is premilled, then contacted with a polar solvent at temperatures below 50° C., with or without the presence of particle growth inhibitors, and finally isolated.... | 03/16/1993 |
| 5096907 | Antibiotic LL-E19085 This disclosure describes novel antibacterial agents designated LL-E10985, LL-E19085ଲ, LL-E19085γ, LL-E19085γ and LL-E19085.zeta., having the structure: ##STR1## their production by aerobic fermentation of a new subspecies of Micr... | 03/17/1992 |
| 4986852 | Pigments and use thereof Pigments of the formula I ##STR1## where A is a five- or six-membered aromatic fused or unfused heterocycle which contains one to three hetero atoms from the series consisting of nitrogen and/or oxygen and/or sulfur and which is bonded to the methyle... | 01/22/1991 |
| 4886884 | Derivatives from cervinomycin based antibiotics The present invention is to provide a novel cervinomycin derivative represented by formula ##STR1## wherein ring B represents ##STR2## at least one of R1, R2 and R3 represents an acyl group or an alkyl group... | 12/12/1989 |
| 4874803 | Dianhydride coupled polymer stabilizers The present invention comprises reaction products resulting from the reaction of hydrazido-substituted or certain amino-substituted polymer stabilizers and cyclic dianhydrides, as well as the use of such products. The polymer stabilizers of the invention ... | 10/17/1989 |
| 4866069 | Substance 4181-2 and its derivatives having anti-leukemia activity Disclosed are a compound of the general formula ##STR1## wherein R1 and R2 are the same or different and each represents a hydrogen atom, an alkyl group or an acyl group, process for the production thereof and use thereof. The c... | 09/12/1989 |
| 4814449 | Substance 4181-2 Disclosed are a compound of the general formula ##STR1## wherein R1 and R2 are the same or different and each represents a hydrogen atom, an alkyl group or an acyl group, process for the production thereof and use thereof. The c... | 03/21/1989 |
| 4758664 | Process for the preparation of linear quinacridones Process for the preparation of linear quinacridones of the formula (1) ##STR1## in which R denotes a hydrogen, fluorine, chlorine or bromine atom or a C1 -C6 -alkyl, C1 -C3 -alkoxy or phenyl group or a fuse... | 07/19/1988 |
