Lactone Ring Containing (e.g., 3,3-bisindolyl Phthalides, Etc.) Patents (Class 548/456)
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Patent number: 9029568Abstract: A branched hetero polyfunctional polyoxyalkylene compound represented by the following formula (1): wherein Z represents a hydroxyl group-removed residue of pentaerythritol or dipentaerythritol, OA1 and OA2 represent an oxyalkylene group having 2 to 4 carbon atoms, L1, L2 and L3 represent an alkylene group or an alkylene group that contains an ester bond, a urethane bond, an amide bond, an ether bond, a carbonate bond, a secondary amino group or a urea bond, X and Y are different from each other and represent a functional group capable of a chemical reaction; m and n are an average number of moles of the oxyalkylene group added, m represents 5 to 1,000, n represents 0 to 1,000, and p, q and r represent 0 or 1; and s1 is an integer of 2 or more and s1+s2=4 or 6.Type: GrantFiled: October 1, 2012Date of Patent: May 12, 2015Assignee: NOF CorporationInventors: Masaki Kamiya, Ken-ichiro Nakamoto
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Patent number: 8691002Abstract: A process for preparing a black colorant, preferably a black pigment, characterized in that a compound of the Formula (I) is reacted with a compound of the Formula (II) in a molar ratio of 1:2, in the presence of a catalyst which in water at 25° C. has a pK?4.5. For the definition of R1 to R7, refer to the description; preferably all are H. Likewise claimed are new crystal polymorphs obtainable by this process, and preferably single-phase mixed crystals. Also claimed are synergistic compositions. These compositions exhibit increased light stability in plastics stabilized with basic light stabilizers when they are pigmented with colorants of the invention rather than with known black pigments such as carbon black.Type: GrantFiled: December 28, 2009Date of Patent: April 8, 2014Assignee: BASF SEInventors: Thomas Eichenberger, Thomas Ruch, Ralf Bauer, Christoph Krebs, Ursula Luterbacher, Marc Maurer
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Patent number: 8674006Abstract: Described is a pigment dispersion which is useful for electrophoretic displays comprising ?) a bis-oxodihydro-indolylene-benzodifuranone colorant of the Formula (I) wherein the substituents are defined as in claim 1, ?) a specific polymeric dispersant, and ?) a solvent which is suitable for dispersions used in electrophoretic displays. Also described are novel colourants and dispersants.Type: GrantFiled: January 7, 2010Date of Patent: March 18, 2014Assignee: BASF SE LudwigshafenInventors: Margherita Fontana, Marian Lanz, Frank Oliver Heinrich Pirrung, Andreas Gernandt, Dario Perera, Thomas Ruch, Christoph Krebs, Thomas Eichenberger, Achim Lamatsch
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Publication number: 20130345102Abstract: The present invention provides an imide compound represented by the following general formula (1). The imide compound of the present invention, particularly when used as a thickening agent for grease, is excellent in durability at high temperatures. [wherein X represents a tetravalent residue obtained by removing four carboxylic groups from an aromatic tetracarboxylic acid, Y represents a divalent residue obtained by removing two amino groups from an aliphatic diamine or an aromatic diamine, and R represents a residue obtained by removing an amino group from an aliphatic monoamine, an alicyclic monoamine, or an aromatic monoamine.Type: ApplicationFiled: January 6, 2012Publication date: December 26, 2013Applicant: JX NIPPON OIL & ENERGY CORPORATIONInventors: Kentaro Yamaguchi, Osamu Kurosawa, Miki Fujiwara, Ryuichi Ueno
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Publication number: 20120172498Abstract: Described is a pigment dispersion which is useful for electrophoretic displays comprising ?) a bis-oxodihydro-indolylene-benzodifuranone colorant of the Formula (I) wherein the substituents are defined as in claim 1, ? a specific polymeric dispersant, and ?) a solvent which is suitable for dispersions used in electrophoretic displays. Also described are novel colourants and dispersants.Type: ApplicationFiled: January 7, 2010Publication date: July 5, 2012Applicant: BASF SEInventors: Margherita Fontana, Marian Lanz, Frank Oliver Heinrich Pirrung, Andreas Gernandt, Dario Perera, Thomas Ruch, Christoph Krebs, Thomas Eichenberger, Bernd Lamatsch, Achim Lamatsch (Heir)
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Publication number: 20110294385Abstract: A process for preparing a black colorant, preferably a black pigment, characterized in that a compound of the Formula (I) is reacted with a compound of the Formula (II) in a molar ratio of 1:2, in the presence of a catalyst which in water at 25° C. has a pK?4.5. For the definition of R1 to R7, refer to the description; preferably all are H. Likewise claimed are new crystal polymorphs obtainable by this process, and preferably single-phase mixed crystals. Also claimed are synergistic compositions. These compositions exhibit increased light stability in plastics stabilized with basic light stabilizers when they are pigmented with colorants of the invention rather than with known black pigments such as carbon black.Type: ApplicationFiled: December 28, 2009Publication date: December 1, 2011Applicant: BASF SEInventors: Thomas Eichenberger, Thomas Ruch, Ralf Bauer, Christoph Krebs, Ursula Luterbacher, Marc Maurer
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Publication number: 20100186891Abstract: A method for producing infra-red inert substrates, including moulded polymeric articles, films, fibers and coatings and other organic and inorganic materials, by incorporating into the substrate or onto the surface of the substrate an effective amount of a dispersed bis-oxodihydroindolylen-benzodifuranone colourant. The thus obtained, also claimed substrates so produced are reflective and transparent to much of the near infra red radiation not reflected. There are multiple applications for cases of devices comprising electronic components, outdoor construction elements, outdoor furniture, automotive, marine or aerospace parts, laminates, artificial leather or textile materials, as well as in polychrome printing processes and optical fibers. The thus obtained substrates can also be subjected to laser welding. New bis-oxo-dihydroindolylen-benzodifuranone compounds are also claimed.Type: ApplicationFiled: July 16, 2008Publication date: July 29, 2010Inventors: Thomas Ruch, Philippe Bugnon, Paul Brown, Véronique Hall-Goulle
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Patent number: 7138425Abstract: The present invention relates to phthalimide carboxylic acid derivatives of formula (I), methods for their preparation, pharmaceutical compositions containing them and their use in medicine, specifically in the treatment of cancer. (I), wherein X is O or S; R1 is a phthalimide carboxylic acid group of formula (II).Type: GrantFiled: March 6, 2003Date of Patent: November 21, 2006Assignee: Oxford Glycoscience (UK) Ltd.Inventors: Stephen Martin Courtney, Philip Andrew Hay, David Ian Carter Scopes
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Patent number: 7122680Abstract: The present invention relates to a ?3 adrenergic receptor agonist of formula I: or a pharmaceutical salt thereof; which is useful for treating Type II diabetes and/or obesity.Type: GrantFiled: October 21, 2004Date of Patent: October 17, 2006Assignee: Eli Lilly and CompanyInventors: Cynthia Darshini Jesudason, Daniel Jon Sall, Freddie Craig Stevens, John Arnold Werner
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Patent number: 7087611Abstract: The present invention relates to new and useful processes for the preparation of the anhydrate form of 5-[2-[4-(1,2-benzisothiazol-3-yl)-1-piperazinyl]ethyl]-6-chloro-1,3-dihydro-2H-indol-2-one hydrochloride.Type: GrantFiled: August 30, 2004Date of Patent: August 8, 2006Assignee: Apotex Pharmachem Inc.Inventors: Carlos Zetina-Rocha, Allan W. Rey, Stephen E. Horne
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Patent number: 6855306Abstract: A process is provided for the removal of undesirable organic matter from solutions of sodium nitrite that are generated as byproducts in the manufacture of thermoplastic resins. The process employs certain activated carbon types derived from lignite granular material under conditions that are favorable to promote the absorption of the organic matter of a variety of organic substances that are residuals that remain from organic phase specifications in the plastics manufacture.Type: GrantFiled: September 26, 2002Date of Patent: February 15, 2005Assignee: General Chemical Performance Products LLCInventors: Walter H. Bortle, Peter A. Monopoli
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Publication number: 20030171596Abstract: The present invention provides convergent processes for preparing epothilone A and B, desoxyepothilones A and B, and analogues thereof. Also provided are analogues related to epothilone A and B and intermediates useful for preparing same. The present invention further provides novel compositions based on analogues of the epothilones and methods for the treatment of cancer and cancer which has developed a multidrug-resistant phenotype.Type: ApplicationFiled: January 28, 2002Publication date: September 11, 2003Inventors: Samuel J. Danishefsky, Peter Bertinato, Dai-Shi Su, Dang Fang Meng, Ting-Chao Chou, Ted Kamenecka, Erik J. Sorensen, Aaron Balog, Kenneth A. Savin
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Patent number: 6608081Abstract: Bicyclic heterocyclic substituted phenyl oxazolidinone compounds of the formula: wherein Y is a radical of Formulae II or III: in which the substituents have the meaning indicated in the description. These compounds are useful as antibacterial agents.Type: GrantFiled: January 28, 2002Date of Patent: August 19, 2003Assignee: Ortho-McNeil Pharmaceutical, Inc.Inventors: Steven D. Paget, Dennis J. Hlasta
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Patent number: 6380185Abstract: The present invention provides compounds of the formula: wherein R1, R2, R3, R4, X, n Y and Z, are as defined in the specification, or a pharmaceutically acceptable salt thereof, as well as pharmaceutical formulations and methods of treating or preventing disease states or syndromes which are caused or associated with an estrogen deficiency or an excess of estrogen utilizing these compounds.Type: GrantFiled: February 25, 2000Date of Patent: April 30, 2002Assignee: American Home Products CorporationInventors: Marci C. Koko, John W. Ullrich, Arthur A. Santilli
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Patent number: 6251354Abstract: The present invention provides a process for recovering a metal nitrite, e.g., sodium nitrite, from a reaction mixture formed from an aromatic displacement reaction such as the synthesis of an aromatic bis(ether phthalimide) in an organic non-polar solvent. The process comprises forming a reaction mixture from the synthesis of an aromatic bis(ether phthalimide) comprising a recoverable amount of metal nitrite; treating the reaction mixture with an amount of water effective to produce an aqueous solution phase of metal nitrite and an organic non-polar phase; and separating the aqueous solution phase of metal nitrite from the organic non-polar phase.Type: GrantFiled: April 2, 1999Date of Patent: June 26, 2001Assignee: General Electric Co.Inventors: Robert E. Greenwell, Thomas Link Guggenheim, Norman Enoch Johnson, Roy Ray Odle, Jimmy Lynn Webb
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Patent number: 5721245Abstract: A compound of the formula ##STR1## wherein R is hydrogen or hydroxy, R.sup.1 and R.sup.2 taken together are a group of the formula --(CH.sub.2).sub.m -- and R.sup.7 is hydrogen or R.sup.1 and R.sup.7 taken together are a group of the formula --(CH.sub.2).sub.n -- and R.sup.2 is hydrogen; R.sup.3 is an aryl or aromatic heterocyclic group; R.sup.4, R.sup.5 and R.sup.6 each independently are hydrogen, halogen, alkyl, hydroxy, alkoxy, haloalkyl, nitro, amino, acylamino, alkylthio, alkylsulfinyl or alkylsulfonyl; R.sup.8 is a group of the formula --(CH.sub.2).sub.p --R.sup.9 or --(CH.sub.2).sub.q --R.sup.10 ; R.sup.9 is hydrogen, alkylcarbonyl, aminoalkylcarbonyl, cyano, amidino, alkoxycarbonyl, aryloxycarbonyl, alkylsulfonyl, aminocarbonyl or aminothiocarbonyl; R.sup.Type: GrantFiled: January 17, 1995Date of Patent: February 24, 1998Assignee: Hoffmann-La Roche Inc.Inventors: Peter David Davis, Christopher Huw Hill, Geoffrey Lawton
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Patent number: 5565580Abstract: The present patent application discloses compounds having the formula ##STR1## or a pharmaceutically acceptable salt thereof whereinone R.sup.21 and R.sup.22 is alkyl and the other is hydrogen or both of R.sup.21 and R.sup.22 are hydrogen;and R.sup.1, R.sup.2, R.sup.3, R.sup.4, R.sup.11, R.sup.12, R.sup.13, and R.sup.14 each independently are hydrogen, halogen, CF.sub.3, CN, or NO.sub.2 ; provided that at least one of R.sup.1, R.sup.2, R.sup.3, R.sup.4, R.sup.11, R.sup.12, R.sup.13, and R.sup.14 are different from hydrogenThe compounds are useful as in vivo active glutamate antagonists.Type: GrantFiled: January 13, 1995Date of Patent: October 15, 1996Assignee: NeuroSearch A/SInventor: Frank W atjen
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Patent number: 5561232Abstract: Compounds of formulaA(B).sub.x, (I),whereinx is an integer from 1 to 4,A is the radical of a chromophore of the quinacridone, anthraquinone, perylene, indigo, quinophthalone, isoindolinone, isoindoline, dioxazine, phthalocyanine or azo series, which radical contains x N-atoms attached to B, preferably with at least one directly adjacent or conjugated carbonyl group,B is a group of formula ##STR1## and, if x is 2, 3 or 4, may also be one, two or three hydrogen atoms. The symbols Q, R.sub.1, R.sub.2, R.sub.3, R.sub.4, X, Y, Z, m and n, are as defined in claim 1. These carbamate group-containing soluble chromophores am distinguished by outstanding solid state fluorescence in the UV range as well as the by ease with which they can be converted to the corresponding pigments in the substrate in which they are incorporated.Type: GrantFiled: October 6, 1994Date of Patent: October 1, 1996Assignee: Ciba-Geigy CorporationInventors: Zhimin Hao, John S. Zambounis, Abul Iqbal
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Patent number: 5468854Abstract: Conjugates of fluorescent labels with specific, selective, and high affinity ligands for receptors have been synthesized and used to directly measure binding to receptors. In the examples, fluorescein conjugates of the high-affinity benzodiazepine receptor ligands Ro 15-1788 and Ro 7-1986 were synthesized. The binding of these fluorescent ligands (BD 621, BD 623 and BD 607) to benzodiazepine receptors was characterized by direct fluorescence measurement. Both the equilibrium dissociation constants (K.sub.D) of BD 621 and BD 607 and the maximum number of binding sites (B.sub.max) estimated by fluorescence monitoring were consistent with values obtained by using radioligand binding techniques. The binding of BD 621 and BD 607 assessed by fluorescence measurement was reversible, abolished by photoaffinity labeling with Ro 15-4513, and unaffected by a variety of substances that do not bind to benzodiazepine receptors.Type: GrantFiled: July 22, 1993Date of Patent: November 21, 1995Assignee: Pharmaceutical Discovery CorporationInventors: R. Tyler McCabe, Brian R. de Costa
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Patent number: 5463045Abstract: Dye-donor element for thermal dye transfer comprising at least one magenta dye having extremely low side absorption in the blue and red regions of the spectrum, said dye corresponding to the general formula (I): ##STR1## wherein R.sup.1 is H, (cyclo)alkyl, or aryl; X represents the atoms completing a heterocycle; Z is an electron-withdrawing group; Y is an electron-withdrawing group or --N(R.sup.2)R.sup.3 ; R.sup.2 and R.sup.3 together represent the atoms completing a heterocycle; or R.sup.2 and R.sup.3 together represent .dbd.C(R.sup.4)R.sup.5, or each of R.sup.2 and R.sup.3 represents (same or different) (cyclo)alkyl, aryl, or an electron-withdrawing group; each of R.sup.4 and R.sup.5 (same or different) represents H, (cyclo)alkyl, aryl, a heterocycle, SO.sub.2 R.sup.6, COR.sup.6, CSR.sup.6, POR.sup.6 R.sup.7, OR.sup.8, NR.sup.8 R.sup.9, SR.sup.8, or R.sup.4 and R.sup.5 together represent the atoms completing an aliphatic ring or a heterocycle, each of R.sup.6 and R.sup.Type: GrantFiled: May 25, 1994Date of Patent: October 31, 1995Assignee: AGFA-Gevaert, N.V.Inventors: Wilhelmus Janssens, Luc Vanmaele
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Patent number: 5268487Abstract: Disclosed is a poly(amide-ether-imide) and the preparation of the same. An ether chain-containing aromatic diamine is subject to thermal condensation with trimellitic anhydride (TMA) in a polar solvent to obtain diimide dicarboxylic acid, followed by polycondensing the diimide dicarboxlic acid with diamine to form the poly(amide-ether-imide). The poly(amide-ether-imide) of the present invention has superior strength, heat resistance, and processability. The preparation of the present invention is simple and economic.Type: GrantFiled: April 7, 1993Date of Patent: December 7, 1993Assignee: National Science CouncilInventors: Chin-Ping Yang, Sheng-Huei Hsiao, Jiun-Hung Lin
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Patent number: 5218127Abstract: Preparation of novel mono(indolylethylenyl) phthalides is disclosed. Specifically, these compounds are chromogenic mono(indolylethylenyl)phthalides of the formula ##STR1## wherein A is as hereinafter defined and selected from moieties of the type ##STR2## wherein L is an indole moiety as hereinafter defined; wherein B is a moiety of the type ##STR3## as hereinafter defined. The process disclosed comprises condensing indolylethylene with a keto acid or its derivative and an electron acceptor in an organic solvent.Type: GrantFiled: November 6, 1992Date of Patent: June 8, 1993Assignee: Appleton Papers Inc.Inventor: Ponnampalam Mathiaparanam
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Patent number: 5200519Abstract: Preparation of novel mono(indolylethylenyl) phthalides is disclosed. Specifically, these compounds are chromogenic mono(indolylethylenyl)phthalides of the formula ##STR1## wherein A is as hereinafter defined and selected from moieties of the type ##STR2## wherein L is an indole moiety as hereinafter defined; wherein B is a moiety of the type ##STR3## as hereinafter defined. The process disclosed comprises condensing indolylethylene with a keto acid or its derivative and an electron acceptor in an organic solvent.Type: GrantFiled: January 3, 1992Date of Patent: April 6, 1993Assignee: Appleton Papers Inc.Inventor: Ponnampalam Mathiaparanam
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Patent number: 5071986Abstract: Chromogenic phthalides and azaphthalides of the formula ##STR1## in which V.sub.1 and V.sub.2 are each, independently of the other, hydrogen, halogen, lower alkyl, lower alkoxy, (lower)alkoxycarbonyl or --NR.sub.1 R.sub.2, at least one of the radicals V.sub.1 and V.sub.2 being lower alkoxy or --NR.sub.1 R.sub.2, A is an unsubstituted or halogen-, cyano-, nitro-, (lower alkyl)-, (lower alkoxy)-, (lower alkyl)thio-, (lower alkyl)amino- or di(lower) alkyl)amino-substituted benzene, naphthalene, pyridine, quinoline, pyrazine or quinozaline ring, B is a substituted phenyl radical of the formula ##STR2## or a 3-indolyl of the formula ##STR3## Q is ##STR4## --S-- or --O--, R.sub.1, R.sub.2, R.sub.3 and R.sub.4 are each, independently of the others, hydrogen, unsubstituted or halogen-, hydroxy-, cyano- or (lower alkoxy)-substituted alkyl, cycloalkyl or unsubstituted or ringsubstituted phenalkyl or phenyl, or the substituent pairs (R.sub.1 and R.sub.2) and (R.sub.3 and R.sub.Type: GrantFiled: November 30, 1990Date of Patent: December 10, 1991Assignee: Ciba-Geigy CorporationInventors: Rox Phaff, Davor Bedekovic
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Patent number: 5039821Abstract: Preparation of novel symmetrical and unsymmetrical chromogenic di-[bis-(indolyl)ethylenyl]tetrahalophthalides is disclosed. Specifically these compounds are chromogenic di-[bis-(indolyl)ethylenyl]tetrahalophthalides of the formula ##STR1## wherein L and X are as hereinafter defined. The process disclosed involves condensing bis(indolyl)ethylenes with tetrahalophthalic anhydride in acetic anhydride, in the presence of an electron acceptor or preferably an acetate of Group I or II of the Periodic Table. Optionally, and preferably, where unsymmetrical di-[bis-(indolyl)ethylenyl]tetrahalophthalides are desired, indoles are reacted with an acylindole in the presence of a Vilsmeier reagent to form the starting bis(indolyl)ethylene.Type: GrantFiled: August 2, 1990Date of Patent: August 13, 1991Assignee: Appleton Papers Inc.Inventor: Ponnampalam Mathiaparanam
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Patent number: 5004813Abstract: Chromogenic phthalides and azaphthalides of the formula ##STR1## in which V.sub.1 and V.sub.2 are each, independently of the other, hydrogen, halogen, lower alkyl, lower alkoxy, (lower alkoxy)carbonyl or --NR.sub.1 R.sub.2, at least one of the radicals V.sub.1 and V.sub.2 being lower alkoxy or --NR.sub.1 R.sub.2, A is an unsubstituted or halogen-, cyano-, nitro-, (lower alkyl)-, (lower alkoxy)-, (lower alkyl)thio-, (lower alkyl)amino- or di(lower alkyl)amino-substituted benzene, naphthalene, pyridine, quinoline, pyrazine or quinoxaline ring, B is a substituted phenyl radical of the formula ##STR2## or a 3-indolyl of the formula ##STR3## Q is ##STR4## --S-- or --O--, R.sub.1, R.sub.2, R.sub.3 and R.sub.4 are each, independently of the others, hydrogen, unsubstituted or halogen-, hydroxy-, cyano- or (lower alkoxy)-substituted alkyl, cycloalkyl or unsubstituted or ringsubstituted phenalkyl or phenyl, or the substituent pairs (R.sub.1 and R.sub.2) and (R.sub.3 and R.sub.Type: GrantFiled: August 24, 1989Date of Patent: April 2, 1991Assignee: Ciba-Geigy CorporationInventors: Rox Phaff, Davor Bedekovic
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Patent number: 4970308Abstract: Chromogenic di-[bis-(indolyl)ethylenyl] tetrahalophthalides are disclosed of the formula ##STR1## wherein each X.sup.1, X.sup.2, X.sup.3, and X.sup.4 is independently selected from chlorine or bromine;wherein each of R.sup.1 and R.sup.7 is independently selected from cycloalkyl, aralkyl, alkoxyalkyl, or aroxyalkyl;wherein each of R.sup.2 and R.sup.8 is independently selected from alkyl (C.sub.1 -C.sub.8) or aryl (substituted or unsubstituted);wherein each of R.sup.3, R.sup.4, R.sup.5, R.sup.6, R.sup.9, R.sup.10, R.sup.11, and R.sup.12 is independently selected from hydrogen, alkyl (C.sub.1 -C.sub.8), cycloalkyl, aryl (substituted or unsubstituted), halogen, alkoxy (C.sub.1 -C.sub.8), aroxy, cycloalkoxy, dialkylamino including symmetrical and unsymmetrical (C.sub.1 -C.sub.Type: GrantFiled: August 23, 1989Date of Patent: November 13, 1990Assignee: Appleton Papers Inc.Inventor: Ponnampalam Mathiaparanam
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Patent number: 4876357Abstract: Chromogenic phthalides and azaphthalides of the formula ##STR1## in which V.sub.1 and V.sub.2 are each, independently of the other, hydrogen, halogen, lower alkyl, lower alkoxy, (lower alkoxy)carbonyl or --NR.sub.1 R.sub.2, at least one of the radicals V.sub.1 and V.sub.2 being lower alkoxy or --NR.sub.1 R.sub.2, A is an unsubstituted or halogen-, cyano-, nitro-, (lower alkyl)-, (lower alkoxy)-, (lower alkyl)thio-, (lower alkyl)amino- or di(lower alkyl)amino-substituted benzene, naphthalene, pyridine, quinoline, pyrazine or quinoxaline ring, B is a substituted phenyl radical of the formula ##STR2## or a 3-indolyl of the formula ##STR3## Q is ##STR4## --S-- or --O--, R.sub.1, R.sub.2, R.sub.3 and R.sub.4 are each, independently of the others, hydrogen, unsubstituted or halogen-, hydroxy-, cyano- or (lower alkoxy)-substituted alkyl, cycloalkyl or unsubstituted or ringsubstituted phenalkyl or phenyl, or the substituent pairs (R.sub.1 and R.sub.2) and (R.sub.3 and R.sub.Type: GrantFiled: October 26, 1987Date of Patent: October 24, 1989Assignee: Ciba-Geigy CorporationInventors: Rox Phaff, Davor Bedekovic
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Patent number: 4812569Abstract: Chromogenic phthalides of the general formula ##STR1## wherein R.sub.1 and R.sub.2 independently of one another denote hydrogen, alkyl, alkenyl, aralkyl, cycloalkyl or aryl or are linked to the ring A or B respectively in the o-position to the nitrogen and then represent the remaining members of a partially or fully hydrogenated heterocyclic 5-membered or 6-membered ring which can contain a further heteroatom from the series O, S, N--R.sub.1 or N--R.sub.2,X.sub.1, X.sub.2, X.sub.3 and X.sub.4 independently of one another denote hydrogen, halogen, alkyl, alkenyl, aralkyl, cycloalkyl, aryl, hydroxyl, alkoxy, alkenyloxy, aralkoxy, cycloalkoxy, aryloxy, acyloxy, alkylmercapto, arylmercapto, aralkylmercapto, alkylsulphonyl, alkoxycarbonyl or nitro or X.sub.1 +X.sub.2, X.sub.2 +X.sub.3 or X.sub.3 +X.sub.4 denote a fused benzene ring,Z.sub.1 and Z.sub.Type: GrantFiled: February 27, 1987Date of Patent: March 14, 1989Assignee: Bayer AktiengesellschaftInventor: Udo Eckstein
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Patent number: 4742067Abstract: Compounds of the formula ##STR1## are disclosed. These compounds are useful as hypotensive agents due to their angiotensin converting enzyme inhibition activity and depending upon the definition of X may also be useful as analgesics due to their enkephalinase inhibition activity.Type: GrantFiled: July 30, 1986Date of Patent: May 3, 1988Assignee: E. R. Squibb & Sons, Inc.Inventors: Sesha I. Natarajan, Eric M. Gordon
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Patent number: 4638010Abstract: Compounds of the formula ##STR1## are disclosed. These compounds are useful as hypotensive agents due to their angiotensin converting enzyme inhibition activity and depending upon the definition of X may also be useful as analgesics due to their enkephalinase inhibition activity.Type: GrantFiled: February 28, 1985Date of Patent: January 20, 1987Assignee: E. R. Squibb & Sons, Inc.Inventors: Harold N. Weller, III, Eric M. Gordon
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Patent number: 4636522Abstract: Compounds of the formula ##STR1## wherein Z is oxygen or sulfur are disclosed. These compounds are useful as hypotensive agents due to their angiotensin converting enzyme inhibition activity and depending upon the definition of X may also be useful as analgesics due to their enkephalinase inhibition activity.Type: GrantFiled: March 22, 1985Date of Patent: January 13, 1987Assignee: E. R. Squibb & Sons, Inc.Inventor: Eric M. Gordon
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Patent number: 4623729Abstract: Compounds of the formula ##STR1## are disclosed. These compounds are useful as hypotensive agents due to their angiotensin converting enzyme inhibition activity and depending upon the definition of X may also be useful as analgesics due to their enkephalinase inhibition activity.Type: GrantFiled: July 22, 1982Date of Patent: November 18, 1986Assignee: E. R. Squibb & Sons, Inc.Inventors: Sesha I. Natarajan, Eric M. Gordon
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Patent number: 4621092Abstract: Compounds of the formula ##STR1## are disclosed. These compounds are useful as hypotensive agents due to their angiotensin converting enzyme inhibition activity and depending upon the definition of X may also be useful as analgesics due to their enkephalinase inhibition activity.Type: GrantFiled: July 14, 1983Date of Patent: November 4, 1986Assignee: E. R. Squibb & Sons, Inc.Inventors: Sesha I. Natarajan, Eric M. Gordon
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Patent number: 4615966Abstract: This invention relates to diffusion transfer photographic processes adapted to be performed in the presence of ambient light and to diffusion transfer products useful in such processes wherein enhanced opacification particularly, in the green region of the visible spectrum is achieved by employing a 7-sulfonamido/5- or 6-sulfamoyl indole phthalein as the light-absorbing, pH-sensitive optical filter agent for the shorter wavelength region of the visible spectrum.Type: GrantFiled: January 21, 1986Date of Patent: October 7, 1986Assignee: Polaroid CorporationInventors: Alan L. Borror, Efthimios Chinoporos, Cheryl P. Petersen
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Patent number: 4604402Abstract: Compounds of the formula ##STR1## are disclosed. These compounds are useful as hypotensive agents due to their angiotensin converting enzyme inhibition activity and depending upon the definition of X may also be useful as analgesics due to their enkephalinase inhibition activity.Type: GrantFiled: March 30, 1984Date of Patent: August 5, 1986Assignee: E. R. Squibb & Sons, Inc.Inventors: Jollie D. Godfrey, Jr., Eric M. Gordon, Sesha I. Natarajan
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Patent number: 4539411Abstract: Novel chiral phosphines are disclosed which when complexed with rhodium provide catalyst compositions for asymmetric hydrogenations.Type: GrantFiled: January 17, 1983Date of Patent: September 3, 1985Assignee: Hoffmann-La Roche Inc.Inventors: Emil A. Broger, Yvo Crameri
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Patent number: 4533499Abstract: A process for the production of a compound of formula ##STR1## which comprises reacting a compound of formula ##STR2## or a mixture of the compounds (2a) and (2b) with a compound ZH or a compound of formula ##STR3## or a mixture of the compounds (2c) and (2d) with a compound YH, both reactions under acidic conditions, wherein X and Y are the same or different and each represents an aromatic carbocyclic radical having an unsubstituted or substituted amino group in the para position to the indicated bond, or a heterocyclic group, and Z represents an aryl radical of formula ##STR4## wherein R.sub.1 and R.sub.2 independently of one another represent hydrogen, C.sub.1 -C.sub.12 alkyl, C.sub.2 -C.sub.8 -alkoxyalkyl, cycloalkyl, aralkyl, aryl, or substituted alkyl, cycloalkyl, aralkyl or aryl, or R.sub.1 and R.sub.Type: GrantFiled: April 6, 1984Date of Patent: August 6, 1985Assignee: Ciba-Geigy CorporationInventors: Malcolm C. Clark, John B. Henshall, Derrick A. Hart
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Patent number: 4451657Abstract: Mono-, bis- and tris-indolyl-substituted furanones useful as color formers, particularly in carbonless duplicating and thermal marking systems, which are prepared respectively by: the interaction of an indole with mucochloric acid; the interaction of an indole with a 4-mono(indolyl-substituted 4-oxo-2-butenoic acid; and by the interaction of an indole with a 2,4-bis(indolyl)-substituted 4-oxobutanoic acid or with a 3,5-bis(indolyl)-substituted furanone.Type: GrantFiled: November 16, 1979Date of Patent: May 29, 1984Assignee: The Hilton-Davis Chemical Co.Inventors: Nathan N. Crounse, Paul J. Schmidt
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Patent number: 4436920Abstract: Recording members having excellent light resistance are obtained by using as a dye precursor specific diarylaminofluoran compounds.Type: GrantFiled: March 11, 1982Date of Patent: March 13, 1984Assignee: Fuji Photo Film Co., Ltd.Inventors: Kozo Sato, Ken Iwakura, Akira Igarashi
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Patent number: 4433156Abstract: A process for preparing 3,6-bis-diarylaminofluoran derivatives which comprises reacting a 3,6-bis-arylaminofluoran derivative with an arylating agent.Type: GrantFiled: April 5, 1982Date of Patent: February 21, 1984Assignee: Fuji Photo Film Co., Ltd.Inventors: Sadao Ishige, Kozo Sato, Ken Iwakura
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Patent number: 4417059Abstract: This invention relates to 3,7-bis(disubstituted aminophenyl- or indolyl)-3,7-bis(diphenylamino)pyromellitides, 3,5-bis(disubstituted aminophenyl- or indolyl)-3,5-bis(diphenylamino)pyromellitides and mixtures thereof useful as color formers, particularly in carbonless duplicating and thermal marking systems, which are prepared by the interaction of 2,5-bis(disubstituted aminophenyl- or indolyl)carbonyl-1,4-benzenedicarboxylic acids or 2,4-bis(disubstituted aminophenyl- or indolyl)carbonyl-1,5-benzenedicarboxylic acids and mixtures thereof with diphenylamines.Type: GrantFiled: August 19, 1981Date of Patent: November 22, 1983Assignee: Sterling Drug Inc.Inventors: Paul J. Schmidt, William M. Hung
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Patent number: 4349679Abstract: Phthalide compounds of the formula ##STR1## wherein A and B, independently of the other, represent a monovalent radical of the formula ##STR2## wherein X.sub.1 represents an amino group of the formula ##STR3## X.sub.2 represents halogen or an amino group of the formula ##STR4## W is hydrogen or halogen, R.sub.1 and T.sub.1 each represents alkyl of at most 12 carbon atoms which is unsubstituted or substituted by halogen, hydroxyl, cyano, lower alkoxy or lower alkylcarbonyloxy, cycloalkyl, phenyl, benzyl or phenyl or benzyl which are substituted by halogen, nitro, lower alkyl or lower alkoxy, R.sub.2 and T.sub.2 each represents hydrogen, alkyl of at most 12 carbon atoms, which is unsubstituted or substituted by halogen, hydroxyl cyano, lower alkoxy or lower alkyl-carbonyloxy; cycloalkyl, benzyl or benzyl which is substituted by halogen, nitro, lower alkyl or lower alkoxy, and T.sub.2 may also represent acyl having 1 to 8 carbon atoms or each pair of substituents R.sub.1 and R.sub.2 or T.sub.1 and T.sub.Type: GrantFiled: May 10, 1979Date of Patent: September 14, 1982Assignee: Giba-Geigy CorporationInventors: Robert Garner, Michael J. Whitehead