Lactone Ring Containing (e.g., 3,3-bisindolyl Phthalides, Etc.) Patents (Class 548/456)
  • Patent number: 9029568
    Abstract: 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: Grant
    Filed: October 1, 2012
    Date of Patent: May 12, 2015
    Assignee: NOF Corporation
    Inventors: Masaki Kamiya, Ken-ichiro Nakamoto
  • Patent number: 8691002
    Abstract: 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: Grant
    Filed: December 28, 2009
    Date of Patent: April 8, 2014
    Assignee: BASF SE
    Inventors: Thomas Eichenberger, Thomas Ruch, Ralf Bauer, Christoph Krebs, Ursula Luterbacher, Marc Maurer
  • Patent number: 8674006
    Abstract: 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: Grant
    Filed: January 7, 2010
    Date of Patent: March 18, 2014
    Assignee: BASF SE Ludwigshafen
    Inventors: Margherita Fontana, Marian Lanz, Frank Oliver Heinrich Pirrung, Andreas Gernandt, Dario Perera, Thomas Ruch, Christoph Krebs, Thomas Eichenberger, Achim Lamatsch
  • Publication number: 20130345102
    Abstract: 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: Application
    Filed: January 6, 2012
    Publication date: December 26, 2013
    Applicant: JX NIPPON OIL & ENERGY CORPORATION
    Inventors: Kentaro Yamaguchi, Osamu Kurosawa, Miki Fujiwara, Ryuichi Ueno
  • Publication number: 20120172498
    Abstract: 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: Application
    Filed: January 7, 2010
    Publication date: July 5, 2012
    Applicant: BASF SE
    Inventors: Margherita Fontana, Marian Lanz, Frank Oliver Heinrich Pirrung, Andreas Gernandt, Dario Perera, Thomas Ruch, Christoph Krebs, Thomas Eichenberger, Bernd Lamatsch, Achim Lamatsch (Heir)
  • Publication number: 20110294385
    Abstract: 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: Application
    Filed: December 28, 2009
    Publication date: December 1, 2011
    Applicant: BASF SE
    Inventors: Thomas Eichenberger, Thomas Ruch, Ralf Bauer, Christoph Krebs, Ursula Luterbacher, Marc Maurer
  • Publication number: 20100186891
    Abstract: 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: Application
    Filed: July 16, 2008
    Publication date: July 29, 2010
    Inventors: Thomas Ruch, Philippe Bugnon, Paul Brown, Véronique Hall-Goulle
  • Patent number: 7138425
    Abstract: 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: Grant
    Filed: March 6, 2003
    Date of Patent: November 21, 2006
    Assignee: Oxford Glycoscience (UK) Ltd.
    Inventors: Stephen Martin Courtney, Philip Andrew Hay, David Ian Carter Scopes
  • Patent number: 7122680
    Abstract: 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: Grant
    Filed: October 21, 2004
    Date of Patent: October 17, 2006
    Assignee: Eli Lilly and Company
    Inventors: Cynthia Darshini Jesudason, Daniel Jon Sall, Freddie Craig Stevens, John Arnold Werner
  • Patent number: 7087611
    Abstract: 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: Grant
    Filed: August 30, 2004
    Date of Patent: August 8, 2006
    Assignee: Apotex Pharmachem Inc.
    Inventors: Carlos Zetina-Rocha, Allan W. Rey, Stephen E. Horne
  • Patent number: 6855306
    Abstract: 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: Grant
    Filed: September 26, 2002
    Date of Patent: February 15, 2005
    Assignee: General Chemical Performance Products LLC
    Inventors: Walter H. Bortle, Peter A. Monopoli
  • Publication number: 20030171596
    Abstract: 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: Application
    Filed: January 28, 2002
    Publication date: September 11, 2003
    Inventors: Samuel J. Danishefsky, Peter Bertinato, Dai-Shi Su, Dang Fang Meng, Ting-Chao Chou, Ted Kamenecka, Erik J. Sorensen, Aaron Balog, Kenneth A. Savin
  • Patent number: 6608081
    Abstract: 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: Grant
    Filed: January 28, 2002
    Date of Patent: August 19, 2003
    Assignee: Ortho-McNeil Pharmaceutical, Inc.
    Inventors: Steven D. Paget, Dennis J. Hlasta
  • Patent number: 6380185
    Abstract: 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: Grant
    Filed: February 25, 2000
    Date of Patent: April 30, 2002
    Assignee: American Home Products Corporation
    Inventors: Marci C. Koko, John W. Ullrich, Arthur A. Santilli
  • Patent number: 6251354
    Abstract: 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: Grant
    Filed: April 2, 1999
    Date of Patent: June 26, 2001
    Assignee: General Electric Co.
    Inventors: Robert E. Greenwell, Thomas Link Guggenheim, Norman Enoch Johnson, Roy Ray Odle, Jimmy Lynn Webb
  • Patent number: 5721245
    Abstract: 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: Grant
    Filed: January 17, 1995
    Date of Patent: February 24, 1998
    Assignee: Hoffmann-La Roche Inc.
    Inventors: Peter David Davis, Christopher Huw Hill, Geoffrey Lawton
  • Patent number: 5565580
    Abstract: 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: Grant
    Filed: January 13, 1995
    Date of Patent: October 15, 1996
    Assignee: NeuroSearch A/S
    Inventor: Frank W atjen
  • Patent number: 5561232
    Abstract: 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: Grant
    Filed: October 6, 1994
    Date of Patent: October 1, 1996
    Assignee: Ciba-Geigy Corporation
    Inventors: Zhimin Hao, John S. Zambounis, Abul Iqbal
  • Patent number: 5468854
    Abstract: 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: Grant
    Filed: July 22, 1993
    Date of Patent: November 21, 1995
    Assignee: Pharmaceutical Discovery Corporation
    Inventors: R. Tyler McCabe, Brian R. de Costa
  • Patent number: 5463045
    Abstract: 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: Grant
    Filed: May 25, 1994
    Date of Patent: October 31, 1995
    Assignee: AGFA-Gevaert, N.V.
    Inventors: Wilhelmus Janssens, Luc Vanmaele
  • Patent number: 5268487
    Abstract: 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: Grant
    Filed: April 7, 1993
    Date of Patent: December 7, 1993
    Assignee: National Science Council
    Inventors: Chin-Ping Yang, Sheng-Huei Hsiao, Jiun-Hung Lin
  • Patent number: 5218127
    Abstract: 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: Grant
    Filed: November 6, 1992
    Date of Patent: June 8, 1993
    Assignee: Appleton Papers Inc.
    Inventor: Ponnampalam Mathiaparanam
  • Patent number: 5200519
    Abstract: 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: Grant
    Filed: January 3, 1992
    Date of Patent: April 6, 1993
    Assignee: Appleton Papers Inc.
    Inventor: Ponnampalam Mathiaparanam
  • Patent number: 5071986
    Abstract: 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: Grant
    Filed: November 30, 1990
    Date of Patent: December 10, 1991
    Assignee: Ciba-Geigy Corporation
    Inventors: Rox Phaff, Davor Bedekovic
  • Patent number: 5039821
    Abstract: 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: Grant
    Filed: August 2, 1990
    Date of Patent: August 13, 1991
    Assignee: Appleton Papers Inc.
    Inventor: Ponnampalam Mathiaparanam
  • Patent number: 5004813
    Abstract: 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: Grant
    Filed: August 24, 1989
    Date of Patent: April 2, 1991
    Assignee: Ciba-Geigy Corporation
    Inventors: Rox Phaff, Davor Bedekovic
  • Patent number: 4970308
    Abstract: 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: Grant
    Filed: August 23, 1989
    Date of Patent: November 13, 1990
    Assignee: Appleton Papers Inc.
    Inventor: Ponnampalam Mathiaparanam
  • Patent number: 4876357
    Abstract: 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: Grant
    Filed: October 26, 1987
    Date of Patent: October 24, 1989
    Assignee: Ciba-Geigy Corporation
    Inventors: Rox Phaff, Davor Bedekovic
  • Patent number: 4812569
    Abstract: 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: Grant
    Filed: February 27, 1987
    Date of Patent: March 14, 1989
    Assignee: Bayer Aktiengesellschaft
    Inventor: Udo Eckstein
  • Patent number: 4742067
    Abstract: 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: Grant
    Filed: July 30, 1986
    Date of Patent: May 3, 1988
    Assignee: E. R. Squibb & Sons, Inc.
    Inventors: Sesha I. Natarajan, Eric M. Gordon
  • Patent number: 4638010
    Abstract: 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: Grant
    Filed: February 28, 1985
    Date of Patent: January 20, 1987
    Assignee: E. R. Squibb & Sons, Inc.
    Inventors: Harold N. Weller, III, Eric M. Gordon
  • Patent number: 4636522
    Abstract: 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: Grant
    Filed: March 22, 1985
    Date of Patent: January 13, 1987
    Assignee: E. R. Squibb & Sons, Inc.
    Inventor: Eric M. Gordon
  • Patent number: 4623729
    Abstract: 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: Grant
    Filed: July 22, 1982
    Date of Patent: November 18, 1986
    Assignee: E. R. Squibb & Sons, Inc.
    Inventors: Sesha I. Natarajan, Eric M. Gordon
  • Patent number: 4621092
    Abstract: 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: Grant
    Filed: July 14, 1983
    Date of Patent: November 4, 1986
    Assignee: E. R. Squibb & Sons, Inc.
    Inventors: Sesha I. Natarajan, Eric M. Gordon
  • Patent number: 4615966
    Abstract: 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: Grant
    Filed: January 21, 1986
    Date of Patent: October 7, 1986
    Assignee: Polaroid Corporation
    Inventors: Alan L. Borror, Efthimios Chinoporos, Cheryl P. Petersen
  • Patent number: 4604402
    Abstract: 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: Grant
    Filed: March 30, 1984
    Date of Patent: August 5, 1986
    Assignee: E. R. Squibb & Sons, Inc.
    Inventors: Jollie D. Godfrey, Jr., Eric M. Gordon, Sesha I. Natarajan
  • Patent number: 4539411
    Abstract: Novel chiral phosphines are disclosed which when complexed with rhodium provide catalyst compositions for asymmetric hydrogenations.
    Type: Grant
    Filed: January 17, 1983
    Date of Patent: September 3, 1985
    Assignee: Hoffmann-La Roche Inc.
    Inventors: Emil A. Broger, Yvo Crameri
  • Patent number: 4533499
    Abstract: 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: Grant
    Filed: April 6, 1984
    Date of Patent: August 6, 1985
    Assignee: Ciba-Geigy Corporation
    Inventors: Malcolm C. Clark, John B. Henshall, Derrick A. Hart
  • Patent number: 4451657
    Abstract: 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: Grant
    Filed: November 16, 1979
    Date of Patent: May 29, 1984
    Assignee: The Hilton-Davis Chemical Co.
    Inventors: Nathan N. Crounse, Paul J. Schmidt
  • Patent number: 4436920
    Abstract: Recording members having excellent light resistance are obtained by using as a dye precursor specific diarylaminofluoran compounds.
    Type: Grant
    Filed: March 11, 1982
    Date of Patent: March 13, 1984
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Kozo Sato, Ken Iwakura, Akira Igarashi
  • Patent number: 4433156
    Abstract: A process for preparing 3,6-bis-diarylaminofluoran derivatives which comprises reacting a 3,6-bis-arylaminofluoran derivative with an arylating agent.
    Type: Grant
    Filed: April 5, 1982
    Date of Patent: February 21, 1984
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Sadao Ishige, Kozo Sato, Ken Iwakura
  • Patent number: 4417059
    Abstract: 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: Grant
    Filed: August 19, 1981
    Date of Patent: November 22, 1983
    Assignee: Sterling Drug Inc.
    Inventors: Paul J. Schmidt, William M. Hung
  • Patent number: 4349679
    Abstract: 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: Grant
    Filed: May 10, 1979
    Date of Patent: September 14, 1982
    Assignee: Giba-Geigy Corporation
    Inventors: Robert Garner, Michael J. Whitehead