Esterified Phenolic Hydroxy Patents (Class 560/108)
  • Publication number: 20150031651
    Abstract: The invention relates to prodrugs of vitamin K2, in particular prodrugs of MK-7 in which the diketone is converted to a monosubstituted or disubstituted ester type derivative. These compounds are shown to give MK-7 in plasma.
    Type: Application
    Filed: March 4, 2013
    Publication date: January 29, 2015
    Inventors: Mona Moller, Marcel Sandberg, Inger Reidun Aukrust
  • Publication number: 20140187630
    Abstract: Provided is a levodopa prodrug that overcomes the problems attributed to the blood kinetics of levodopa such as large number of doses and the incidence of side effects due to frequent dosing. (2S)-2-Amino-3-(3,4-bis((2-(benzoyloxy)-2-methylpropanoyl)oxy)phenyl)propanoic acid, a salt thereof, or a solvate thereof is a levodopa prodrug, and provides a flat blood concentration-time profile of levodopa through oral administration, and therefore is useful as a preventive and/or therapeutic agent for Parkinson's disease and/or Parkinson's syndrome that overcomes the problems associated with pharmaceutical preparations of levodopa.
    Type: Application
    Filed: March 5, 2014
    Publication date: July 3, 2014
    Applicant: ONO PHARMACEUTICALS CO., LTD.
    Inventors: Masaya KOKUBO, Koji YANO
  • Publication number: 20130281531
    Abstract: The present disclosure relates to polymorphs of 4-[2-dimethylamino-1-(1-hydroxycyclohexyl)ethyl]phenyl 4-methylbenzoate hydrochloride, methods for preparing the same and use of the same.
    Type: Application
    Filed: March 18, 2013
    Publication date: October 24, 2013
    Inventors: Shandong Luye Pharmaceutical Co., Ltd., Youxin Li
  • Publication number: 20130240784
    Abstract: To provide a liquid crystal compound having a large negative dielectric anisotropy (??), and having at least one of characteristics such as a high stability to heat, light and so forth, a high clearing point, a suitable refractive index anisotropy (?n) and an excellent compatibility with other liquid crystal compounds, and an intermediate thereof. A solution is a compound represented by formula (1): wherein, for example, R1 and R2 are alkyl having 1 to 12 carbons, alkoxy having 1 to 12 carbons or alkenyl having 2 to 12 carbons; ring A1, ring A2 and ring A3 are 1,4-cyclohexylene or 1,4-phenylene; Z1, Z2 and Z3 are a single bond or —(CH2)2—; X is —CF2— or —CHF—; and l, m and n are 0 or 1.
    Type: Application
    Filed: December 9, 2011
    Publication date: September 19, 2013
    Applicants: JNC PETROCHEMICAL CORPORATION, JNC CORPORATION
    Inventors: Kenji Hirata, Hiroki Ookawa
  • Patent number: 8524939
    Abstract: Novel processes for preparing optically active cyclopentanones 1 which are useful for the preparation of benzindene Prostaglandins and novel cyclopentanones are provided. The invention also provides novel processes of preparing benzindene Prostaglandins and novel intermediates for benzindene Prostaglandins.
    Type: Grant
    Filed: August 24, 2011
    Date of Patent: September 3, 2013
    Assignee: Chirogate International Inc.
    Inventors: Shih-Yi Wei, Min-Kuan Hsu, Ming-Kun Hsu
  • Publication number: 20130225679
    Abstract: Provided are analgesic compounds, and salts thereof, of formula: (I) wherein A is: (A) Additionally, pharmaceutical formulations and methods of use employing the above compounds are provided.
    Type: Application
    Filed: January 13, 2012
    Publication date: August 29, 2013
    Applicant: ELI LILLY AND COMPANY
    Inventors: Jean Marie Defauw, Scott Dale Holmstrom, Shuhui Chen, Yang Zhang, Wentao Wu, Xian Peng, Yujuan Ma, Lun Lu
  • Patent number: 8470954
    Abstract: A novel macromer or mixture thereof is described herein, comprising benzoyl isocyanate terminal moieties and at least two residues of a water-soluble polymer having a molecular weight ranging from 80 to 10,000 adjacent to the carbonyl group of the benzoyl isocyanate moieties, thereby forming at least two ester linkages in the macromer or mixture thereof. A method for making a polyisocyanate macromer is also described herein.
    Type: Grant
    Filed: July 2, 2007
    Date of Patent: June 25, 2013
    Assignee: Ethicon, Inc.
    Inventors: Christopher M. Westergom, Benjamin D. Fitz
  • Publication number: 20130053581
    Abstract: Novel processes for preparing optically active cyclopentanones 1 which are useful for the preparation of benzindene Prostaglandins and novel cyclopentanones are provided. The invention also provides novel processes of preparing benzindene Prostaglandins and novel intermediates for benzindene Prostaglandins.
    Type: Application
    Filed: August 24, 2011
    Publication date: February 28, 2013
    Inventors: Shih-Yi WEI, Min-Kuan Hsu, Ming-Kun Hsu
  • Publication number: 20110237798
    Abstract: A method is provided for the preparation of an aromatic carboxylic acid aryl ester or an N-aryl aromatic carboxamide. The method comprises contacting an O,O-diaryl thiocarbonate or an O-aryl-N-aryl thiocarbamate with a reactant that regioselectively reacts with sulfur, which contact causes an O-neophyl rearrangement, thereby forming either the aromatic carboxylic acid aryl ester or the N-aryl aromatic carboxamide, respectively.
    Type: Application
    Filed: March 22, 2011
    Publication date: September 29, 2011
    Applicant: The Florida State University Research Foundation, Inc.
    Inventors: Igor Alabugin, Abdulkader Baroudi
  • Publication number: 20100210524
    Abstract: The invention provides a compound of formula (I) or a pharmaceutically acceptable ester, amide, solvate or salt thereof, including a salt of such an ester or amide, and a solvate of such an ester, amide or salt, wherein W, X, Y, Z, R1, R2, R7, R8, R9, R10, R11, R12, R13, R14, R15 and R16 are as defined in the specification. The invention also provides also provides the use of such compounds in the treatment or prophylaxis of a condition associated with a disease or disorder associated with estrogen receptor activity.
    Type: Application
    Filed: July 21, 2008
    Publication date: August 19, 2010
    Inventors: Theresa Apelqvist, Joakim Löfstedt, Thomas Norin, Mattias Wennerstål, Xiongyu Wu, Lars Hagberg
  • Publication number: 20100143843
    Abstract: Disclosed are a photoacid generator, a copolymer, a chemically amplified resist composition, and a method of forming a pattern using the chemically amplified resist composition. The photoacid is connected with a main chain of the copolymer, whereby the photoacid is equally dispersed within a resist layer, and characteristics of line edge roughness of a resist pattern is improved.
    Type: Application
    Filed: April 2, 2009
    Publication date: June 10, 2010
    Inventors: Jung Hoon OH, Sang Jin KIM, Jin Ho KIM, Dae Hyeon SHIN
  • Publication number: 20090239944
    Abstract: The present invention relates to compounds of the formula I wherein R3 is C1-6-alkyloxy, C1-6-acyloxy or aroyloxy; R6 is hydrogen or C1-6-alkyloxy; R7 is C1-6-alkyloxy, C1-6-acyloxy, aroyloxy or arylacyloxy; R8 is hydrogen or C1-6-alkyloxy; or R7 and R8 form together a group O-L-O with L being (CR1R2)n, with R1 and R2 being independently from each other hydrogen or C1-5-alkyl and n being an integer from 1 to 3; R10 is hydrogen or N—C1-4-acyl, N—C1-5-alkyl-x-Cx-alkyl with x being an integer from 1 to 5, for use as medicament for the treatment of a disorder connected to impaired glucose metabolism and impaired insulin action such as syndrome X and diabetes type 1 and 2, especially for the treatment of (non-autoimmune) diabetes type 2.
    Type: Application
    Filed: June 23, 2006
    Publication date: September 24, 2009
    Inventors: Daniel D'orazio, Antoine De Saizieu, Goede Schuler, Ying Wang-Schmidt, Christof Wehrli, Swen Wolfram
  • Patent number: 6989462
    Abstract: A process is described for preparing compounds of formula (I) where R is H, optionally halogen-substituted alkyl, cycloalkyl, aryl, alkyl-aryl or heteroaryl, and, in alkyl and cycloalkyl, one or more CH2 groups may be replaced by —O—. The compounds of the formula (I) are valuable intermediates in the synthesis of PPAR agonists.
    Type: Grant
    Filed: March 18, 2004
    Date of Patent: January 24, 2006
    Assignee: Sanofi-Aventis Deutschland GmbH
    Inventors: Claus-Jürgen Maier, Tobias Metzenthin, Joachim Graeser, Richard Bicker, Javier Manero
  • Patent number: 6753443
    Abstract: The present invention relates to a process for preparing a chiral ester according to the formula (100): by reacting (i) a racemic alcohol, (ii) a selected ruthenium complex to activate racemization of the racemic alcohol, (iii) a lipase to selectively acylate one enantiomer of the racemic alcohol, and (iv) an acyl donor compound to supply an acyl group to the lipase.
    Type: Grant
    Filed: March 2, 2001
    Date of Patent: June 22, 2004
    Assignees: Samsung Fine Chemicals Co., Ltd., Pohang University of Science and Technology
    Inventors: Jai Wook Park, Mahn-Joo Kim, Jeong Hwan Koh, Hyun Min Jung
  • Publication number: 20040044243
    Abstract: The invention relates to an improved process for preparing 3-acyloxy-2-methylbenzoic acids by heating substituted naphthalenes in the presence of alkali metal hydroxides and subsequently acylating.
    Type: Application
    Filed: June 10, 2003
    Publication date: March 4, 2004
    Inventors: Johannes Scherer, Horst Behre, Friedrich Muller-Hauck
  • Patent number: 6512136
    Abstract: New compounds of formula I are described The compounds have potentially valuable pharmaceutical properties in the treatment of some central and peripheral nervous system disorders, where a reduction in the O-methylation of catecholamines may be of therapeutical benefit, such as Parkinson's disease and parkinsonian disorders, gastrointestinal disturbances, edema formation states and hypertension.
    Type: Grant
    Filed: December 17, 1999
    Date of Patent: January 28, 2003
    Assignee: Portela & C.A., S.A.
    Inventors: Jan Benes, Patricio Manuel Viera Araujo Soares Da Silva, David Alexander Learmonth
  • Patent number: 6440328
    Abstract: The invention relates to a one-step process for the preparation of acryloyl group-containing liquid-crystalline monomers of the general formula (1) (Z—Y1—A2—Y2—)mM(—O—A1-acrylate)n  (1) in which mesogenic alcohols of the general formula (2) (Z—Y1—A2—Y2—)mM(OH)n  (2) are reacted with esters of 3-chloropropionic acid of the general formula (3) ClPr—A1—X  (3) with elimination of HCl, where acrylate is an acrylate radical, ClPr is a 3-chloropropionate radical, A1 are identical or different alkyl chain spacers having 2-20 carbon atoms, in which the carbon chain may be interrupted by non-adjacent ether, thioether, or imino groups, A2 are radicals A1 or single chemical bonds, M is a mesogenic group, X is a leaving group, Z are alkyl radicals or crosslinkable groups, Y1 and Y2, independently of one another, are a single chemical bond, —O—, —S—, —O—CO—, —CO
    Type: Grant
    Filed: April 18, 2000
    Date of Patent: August 27, 2002
    Assignee: Consortium fur Elektrochemische Industrie GmbH
    Inventors: Volker Stanjek, Wolfram Schindler, Thomas Kammel, Norman Häberle
  • Patent number: 6436991
    Abstract: Ferulate compounds derived from extracts from the plant Commiphora wightii are used in compositions and methods for prevention and treatment of abnormal cell growth and proliferation in inflammation, neoplasia and cardiovascular disease.
    Type: Grant
    Filed: May 21, 2001
    Date of Patent: August 20, 2002
    Assignees: Sabinsa Corporation, Sami Chemicals & Extracts (P) Ltd.
    Inventors: Muhammed Majeed, Vladimir Badmaev, Rajinder Kumar Bammi, Subbalakshmi Prakash, Sankaran Natarajan
  • Publication number: 20020004619
    Abstract: A process for preparing trimethylhydroquinone diacetate, with subsequent hydrolysis to give trimethylhydroquinone, the process including reacting 2,2,6-trimethylcyclohexane-1,4-dione under oxidative conditions, in the presence of a sulfonating agent and a strong acid, and in the presence of an acylating agent.
    Type: Application
    Filed: April 4, 2001
    Publication date: January 10, 2002
    Inventors: Steffen Krill, Klaus Huthmacher
  • Patent number: 6242637
    Abstract: The invention relates to compounds of the formula in which: A is a divalent radical selected from: A1) —O—CO— A2) —CH2—O—CO— A3) —O—CH2—CO— A4) —O—CH2—CH2— A5) —N(R1)—CO— A6) —N(R1)—CO—CO— A7) —N(R1)—CH2—CH2— A8) —O—CH2— in which: R1 is a hydrogen or a (C1-C4)-alkyl; and Am is a nitrogen-containing heterocycle.
    Type: Grant
    Filed: October 20, 1998
    Date of Patent: June 5, 2001
    Assignee: Sanofi-Synthelabo
    Inventors: Xavier Emonds-Alt, Isabelle Grossriether, Patrick Gueule, Vincenzo Proietto, Didier Van Broeck
  • Patent number: 6242636
    Abstract: An electoclinic device having two spaced cell walls each bearing electrode structures and treated on at least one facing surface with an alignment layer, a layer of a smectic liquid crystal material enclosed between the cell walls, where the liquid crystal material contains one or more of the compounds described by formula I as defined in the specification.
    Type: Grant
    Filed: January 5, 1999
    Date of Patent: June 5, 2001
    Assignee: The Secretary of State for Defence in Her Britannic Majesty's Government of the United Kingdom of Great Britian and Northern Ireland of Defence Evaluation and Research Agency
    Inventors: Andrew John Slaney, Damien Gerard McDonnell, Amarjit Kaur Samra, Maurice Stanley, Victoria Minter, John William Goodby, Michael Hird, Simon John Cross, Chu Chuan Dong
  • Patent number: 6040470
    Abstract: There is provided a developer composition including at least one of sulfonyl compounds represented by formula (1) and at least one of sulfonyl compounds represented by formula 2: ##STR1## wherein X is H or lower alkyl, R.sub.1, R.sub.2, R.sub.3, R.sub.4, R.sub.5 and R.sub.6 which may be the same or different, present H, halogen or lower alkyl and Y represents alkyl, benzenesulfonyl, benzoyl et al, A thermalsensitive recording medium having the above developer is of high sensitivity, less surface-blushing with lapse of time and is excellent in storage stability of a recorded image, particularly in heat resistance, humidity resistance and anti-plasticizer.
    Type: Grant
    Filed: September 10, 1998
    Date of Patent: March 21, 2000
    Assignee: Sanko Kaihatsu Kagaku Kenkyusho
    Inventors: Shigeru Oda, Eiji Kawabata
  • Patent number: 6030546
    Abstract: The present invention relates to trans-olefin compounds represented by the general formula (1) useful as an ingredient of liquid crystal composition, trans-olefin compounds useful as intermediate of pesticides, medical drugs, liquid crystal materials and the like, a process for producing those trans-olefin compounds, a liquid crystal composition containing the trans-olefin compound as an active ingredient, and a liquid crystal element using the liquid crystal composition. ##STR1## (In the general formula (1), R.sup.1, A.sup.1, A.sup.2, A.sup.3, Z and R.sup.2 are same as defined in the specification. Also, m, p, q, n, r, s and t are each an integer as defined in the specification.
    Type: Grant
    Filed: April 4, 1997
    Date of Patent: February 29, 2000
    Assignee: Sumitomo Chemical Company, Limited
    Inventors: Yukari Fujimoto, Naoyuki Takano, Takayuki Higashii, Masayoshi Minai, Chizu Sekine, Kayoko Ueda, Koichi Fujisawa, Kyoko Endo, Takeshi Tani
  • Patent number: 5976408
    Abstract: An acrylonitrile derivative expressed by the following general formula I, a composition comprising the derivative and having an improved viscosity and optical anisotropy, and a liquid crystal display device: ##STR1## wherein rings A.sup.1 to A.sup.3 represent phenylene, cyclohexylene, dioxane, or pyrimidine, R.sup.
    Type: Grant
    Filed: December 19, 1997
    Date of Patent: November 2, 1999
    Assignee: Chisso Corporation
    Inventors: Atsuko Fujita, Shuichi Matsui, Koichi Shibata, Kazutoshi Miyazawa, Yasuko Sekiguchi, Etsuo Nakagawa
  • Patent number: 5851427
    Abstract: Photocross-linkable naphthyl derivatives include compounds of the formula: ##STR1## wherein R.sup.1 and R.sup.2 each independently signify a cross-linkable group;S.sup.1 and S.sup.2 signify --(CY.sub.2).sub.m -, --O(CY.sub.2).sub.m -, --(CY.sub.2).sub.m O--, --(CY.sub.2).sub.m COO--, --(CY.sub.2).sub.m OOC--, --(Si?(CH.sub.3).sub.2 !O).sub.m -, --OCH.sub.2 (Si?(CH.sub.3).sub.2 !O).sub.m Si?(CH.sub.3).sub.2 !CH.sub.2 O-- or --NHCH.sub.2 (Si?(CH.sub.3).sub.2 !O).sub.m Si?(CH.sub.3).sub.2 !CH.sub.2 NH--;Y signifies hydrogen, fluorine or methyl;a signifies 0 or 1;b signifies 1 or 2, with the proviso that a+b=2;m signifies a whole number of 1 to 16;A.sup.1 and A.sup.2 each independently signify 1,4-phenylene, which is optionally mono- or multiply-substituted with halogen, cyano, methyl, methoxy and/or acetyl, pyridine-2,5-diyl, pyrimidine-2,5-diyl, trans-1,4-cyclohexylene or trans-1,3-dioxane-2,5-diyl; andZ.sup.1 and Z.sup.2 each independently signify a single bond, --CH.sub.2 CH.sub.2 --, --OCH.sub.2 --, --CH.
    Type: Grant
    Filed: February 23, 1996
    Date of Patent: December 22, 1998
    Assignee: Rolic AG
    Inventor: Stephen Kelly
  • Patent number: 5851424
    Abstract: The present invention is concerned with photo cross-linkable liquid crystalline compounds of the general formula ##STR1## wherein A.sup.1 and A.sup.2 each represent a cross-linkable, mesogenic residue,liquid crystalline mixtures which contain such compounds and their use in the cross-linked state as optical components.
    Type: Grant
    Filed: July 25, 1996
    Date of Patent: December 22, 1998
    Assignee: Rolic AG
    Inventor: Stephen Kelly
  • Patent number: 5820785
    Abstract: Disclosed are derivatives of fluoroalkylethynyl- and difluoroalkylethynylbenzenes of the formula (I) herein. These compounds exhibit useful properties as liquid crystal compounds and are useful in nematic liquid crystal mixtures.
    Type: Grant
    Filed: November 18, 1996
    Date of Patent: October 13, 1998
    Assignee: Merck Patent Gesellschaft mit Beschrankter Haftung
    Inventors: Hubert Schlosser, Dietmar Jungbauer
  • Patent number: 5811421
    Abstract: The present invention provides compounds of formula ##STR1## wherein R.sup.1 is --H, --OH, --O(C.sub.1 -C.sub.4 alkyl), --OCOC.sub.6 H.sub.5, --OCO(C.sub.1 -C.sub.6 alkyl), or --OSO.sub.2 (C.sub.4 -C.sub.6 alkyl);R.sup.2 is C.sub.1 -C.sub.6 alkyl or C.sub.5 -C.sub.7 cycloalkyl which is optionally substituted with 1 to 3 substitutents selected from the group consisting of C.sub.1 -C.sub.4 alkyl, C.sub.1 -C.sub.4 alkoxy, hydroxy, amino, nitro, and halo;X is --CH(OH)-- or --CH.sub.2 --;M is --CH.sub.2 CH.sub.2 -- or --CH.dbd.CH--;n is 2 or 3; andR.sup.3 is 1-piperidinyl, 1-pyrrolidinyl, methyl-1-pyrrolidinyl, dimethyl-1-pyrrolidinyl, 4-morpholino, dimethylamino, diethylamino, or 1-hexamethyleneimino; or a pharmaceutically acceptable salt thereof. Also provided are methods of using the compounds of the present invention for the treatment of various medical indications associated with post-menopausal syndrome, uterine fibroid disease, endometriosis, and aortal smooth muscle cell proliferation.
    Type: Grant
    Filed: July 16, 1996
    Date of Patent: September 22, 1998
    Assignee: Eli Lilly and Company
    Inventors: Jeffrey Alan Dodge, Kennan Joseph Fahey, Charles David Jones, Charles Willis Lugar, III
  • Patent number: 5800733
    Abstract: The present invention is concerned with photo cross-linkable liquid crystalline compounds in the formula ##STR1## wherein for example: A,B,C,D,E,F independently is pyridine-2,5-diyl, pyrimidine-2,5-diyl, trans-1,4-cyclohexylene, trans-1,3-dioxane-2,5-diylZ.sup.1, Z.sup.2, Z.sup.7 independently is --(CH.sub.2).sub.s O--, --COO--, --(CH.sub.2).sub.s COO--Z.sup.3, Z.sup.4, Z.sup.8 independently is a single bond, --CH.sub.2 CH.sub.2 --, --CH.sub.2 O--Z.sup.5, Z.sup.6 independently is --(CH.sub.2).sub.s --m, n, q and r independently is 0, 1 or 2;s is a whole number of 1 to 16;R.sup.1, R.sup.2 independently is CH.sub.2 .dbd.CH--COO--, CH.sub.2 .dbd.C(CH.sub.3)--COO--R.sup.3 is H, CH, COOC.sub.n H.sub.2n+1, CnH.sub.2n+1 ; n=1 . . . 10X.sup.1, X.sup.2 and X.sup.3 independently is hydrogen, halogen, cyano or lower alkyl.The invention is also related to liquid crystalline mixtures and their use for electro-optical purpose.
    Type: Grant
    Filed: July 25, 1996
    Date of Patent: September 1, 1998
    Assignee: Rolic AG
    Inventor: Stephen Kelly
  • Patent number: 5800734
    Abstract: A compound of the formula ##STR1## wherein R is C.sub.1 -C.sub.7 alkyl or C.sub.2 -C.sub.12 alkenyl; rings A and B each independently are 1,4-phenylene,trans-1,4-cyclohexylene or trans-1,3-dioxane-2,5-diyl;Z.sup.1 is a single bond or --CH.sub.2 CH.sub.2 --; andZ.sup.2 is a single bond, --CH.sub.2 CH.sub.2 --, --OCH.sub.2 --,--C.tbd.C--, --COO-- or --OOC--; andm, n are 0 or 1, with the proviso that m+n.ltoreq.1;as well as liquid crystalline mixtures which contain such compounds and the use of such compounds and, respectively, mixtures for electro-optical display devices.
    Type: Grant
    Filed: March 4, 1996
    Date of Patent: September 1, 1998
    Assignee: Rolic AG
    Inventors: Richard Buchecker, Guy Marck
  • Patent number: 5792762
    Abstract: The invention provides dihydronaphthofluorene compounds, formulations, and methods of inhibiting bone loss or bone resorption, particularly osteoporosis, and cardiovascular-related pathological conditions.
    Type: Grant
    Filed: September 19, 1997
    Date of Patent: August 11, 1998
    Assignee: Eli Lilly and Company
    Inventors: Henry Uhlman Bryant, Thomas Alan Crowell, Charles David Jones
  • Patent number: 5750577
    Abstract: Novel medicinally-useful compounds are provided herein. These compounds include isomeric cyclic tetramers of formaldehyde and 1-naphthol, and the derivatives or analogues of such cyclic tetramers, and linear oligomers of chromotropic acid, or its derivatives or analogues with naphthalene.
    Type: Grant
    Filed: December 5, 1996
    Date of Patent: May 12, 1998
    Assignee: Seabright Corporation Limited
    Inventor: Paris Georghiou
  • Patent number: 5741438
    Abstract: Optically active biphenyl derivatives including optically active biphenyl carboxylic acid derivative, hydroxybiphenyl derivative, alkoxybiphenylalkanol derivative and alkoxybiphenylalkanol derivative have the following structural formula: ##STR1## wherein R.sup.1 represents an alkyl group of 3-20 carbon atoms, R.sup.2 represents an alkyl group or alkoxyalkyl group of 1-20 carbon atoms which may optionally be substituted with at least one halogen atom. X represents --O--, --COO-- or --OCO--, m represents 0 or 1, n represents an integer of 1-6 and p represents 0 or 1, and the * mark represents an asymmetric carbon atom. These optically active biphenyl derivatives are useful as a ferroelectric liquid crystal material or its component having a sufficient spontaneous polarization and by which a high speed response is possible and which further exhibits a ferroelectric liquid crystal phase in a temperature region around room temperature.
    Type: Grant
    Filed: May 30, 1995
    Date of Patent: April 21, 1998
    Assignee: Sumitomo Chemical Company, Limited
    Inventors: Isao Kurimoto, Takayuki Higashii, Shoji Toda, Masayoshi Minai, Chizu Sekine, Takeshi Tani
  • Patent number: 5571449
    Abstract: Partially fluorinated benzene derivatives of the formula I ##STR1## in which R, A.sup.1, A.sup.2, Z.sup.1, Z.sup.2, L.sup.1, L.sup.2 and m are as defined in claim 1, are suitable as components of liquid-crystalline media.
    Type: Grant
    Filed: January 19, 1995
    Date of Patent: November 5, 1996
    Assignee: Merck Patent Gesellschaft mit beschrankter Haftung
    Inventors: Ekkehard Bartmann, Herbert Plach, Rudolf Eidenschink
  • Patent number: 5447659
    Abstract: Disclosed are novel active benzene derivatives represented by the general formula (I): ##STR1## (wherein X represents --CCO--, --OCO--, --CH.sub.2 C-- or --OCH.sub.2 --; A represents a hydrogen atom, a halogen atom or an alkyl or alkoxyl group having 1 to 20 carbon atoms; R represents an alkyl group having 1 to 20 carbon atoms; l and m each represents a number of 1 or 2, n represents a number of 0 or 1, but when n is 0 the sum of l and m is 3 or less; and * indicates asymmetric carbon atom), a process for producing the same, liquid-crystalline substances containing said derivatives as active ingredient, and optical switching elements utilizing the liquid crystal compositions containing said liquid-crystalline substances.
    Type: Grant
    Filed: May 31, 1994
    Date of Patent: September 5, 1995
    Assignee: Sumitomo Chemical Company, Limited
    Inventors: Takayuki Higashii, Masayoshi Minai
  • Patent number: 5386017
    Abstract: Novel alkenes leading to light producing 1,2-dioxetanes of the formula ##STR1## wherein ArOX is an aryl ring substituted with an X oxy group and A are passive organic groups which allow the 1,2-dioxetane to produce light when triggered by removing X. X is a chemically labile group which is removed by an activating agent. The 1,2-dioxetane compounds can be triggered to produce light at room temperatures.
    Type: Grant
    Filed: February 26, 1990
    Date of Patent: January 31, 1995
    Assignee: Board of Governors of Wayne State University
    Inventor: Arthur P. Schaap
  • Patent number: 5374376
    Abstract: Disclosed are herein optically active aromatic compounds represented by the formula (I): ##STR1## wherein X represents --COO-- or --OCO--; Y represents --COO--, --OCO-- or --O--; R.sub.2 represents an alkyl or alkoxyalkyl group having 1 to 20 carbon atoms unsubstituted or substituted by a halogen atom; R.sub.1 represents an alkyl group having 3 to 20 carbon atoms;Z represents ##STR2## wherein p represents a number of 1 to 5 and * indicates an asymmetric carbon atom; l and k each represents a number of 1 or 2; m and s each represents a number of 0 or 1, which are useful as a liquid crystal.
    Type: Grant
    Filed: September 21, 1993
    Date of Patent: December 20, 1994
    Assignee: Sumitomo Chemical Company, Limited
    Inventors: Takayuki Higashii, Isao Kurimoto, Shoji Toda, Masayoshi Minai, Shigeaki Chika, Koichi Fujisawa, Kiyoshi Imamura
  • Patent number: 5338484
    Abstract: Disclosed are novel active benzene derivatives represented by the general formula (I): ##STR1## (wherein X represents --COO--, --OCO--, --CH.sub.2 O-- or --OCH.sub.2 --; A represents a hydrogen atom, a halogen atom or an alkyl or alkoxyl group having 1 to 20 carbon atoms: R represents an alkyl group having 1 to 20 carbon atoms; l and m each represents a number of 1 or 2, n represents a number of 0 or 1, but when n is 0 the sum of l and m is 3 or less; and * indicates asymmetric carbon atom), a process for producing the same, liquid-crystalline substances containing said derivatives as active ingredient, and optical switching elements utilizing the liquid crystal compositions containing said liquid-crystalline substances.
    Type: Grant
    Filed: October 18, 1993
    Date of Patent: August 16, 1994
    Assignee: Sumitomo Chemical Company, Limited
    Inventors: Takayuki Higashii, Masayoshi Minai
  • Patent number: 5334766
    Abstract: A process for the resolution of racemic diphosphine oxides into the optically active antipodes by reacting the racemate with a resolving agent comprising using a carbamate or thiocarbamate of an optically active .alpha.-hydroxycarboxylic acid or .alpha.-aminocarboxylic acid as the resolving agent.
    Type: Grant
    Filed: April 9, 1992
    Date of Patent: August 2, 1994
    Assignee: Hoffmann-La Roche Inc.
    Inventors: Marco Cereghetti, Alain Rageot
  • Patent number: 5328643
    Abstract: The invention relates to optically active compounds represented by the general formula I ##STR1## wherein R.sub.1, R.sub.2, R.sub.3, R.sub.4, Q.sub.1, Q.sub.2, Q.sub.3, and M are defined as in the specification, methods and intermediates for their preparation, liquid crystal compositions comprising at least one optically active compound of formula I and their use in electrooptical display, switching and modulation devices.
    Type: Grant
    Filed: February 26, 1992
    Date of Patent: July 12, 1994
    Assignees: Takeda Chemical Industries, Ltd., Hitachi, Ltd.
    Inventors: Yuka Sudo, Katsumi Kondo, Teruo Kitamura, Koichi Matsumura, Mitsuru Kawada, Yoshihiro Sugihara
  • Patent number: 5306837
    Abstract: Novel intermediates useful in the preparation of the optically active antiviral compound [1R-(1.alpha.,2.beta.,3.alpha.)]-2-amino-9-[2,3-bis(hydroxymethyl)cyclobut yl]-1,9-dihydro-6H-purin-6-one are described.
    Type: Grant
    Filed: July 15, 1993
    Date of Patent: April 26, 1994
    Assignee: E. R. Squibb & Sons, Inc.
    Inventors: Gregory S. Bisacchi, Toomas Mitt
  • Patent number: 5290793
    Abstract: Dihydrocaffeic acid derivatives are here disclosed which are applicable as medicines having excellent absorbency in the case of oral administration and good concentration retention in blood.The disclosed compounds have the function to induce the production and secretion of a nerve growth factor (NGF) in the brain tissue, and therefore they are effective as medicines for the progression inhibition and therapy of regressive disorders of the central nervous system.
    Type: Grant
    Filed: October 29, 1992
    Date of Patent: March 1, 1994
    Assignee: Mitsui Toatsu Chemicals, Incorporated
    Inventors: Nobuyuki Fukazawa, Hajime Iizuka, Osamu Yano, Yukio Miyama
  • Patent number: 5230830
    Type: Grant
    Filed: April 15, 1992
    Date of Patent: July 27, 1993
    Assignee: The Secrteary of State for Defence in Her Britannic Majesty's Government of the United Kingdom of Great Britain and Northern Ireland
    Inventors: David Coates, Simon Greenfield, Ian C. Sage
  • Patent number: 5177112
    Abstract: Certain novel compounds having the structural formula ##STR1## wherein R.sub.2, R.sub.3 and R.sub.4 are each selected from the group consisting of H and OA; A is H or is selected from the group consisting of hydrocarbyl radicals, e.g. lower alkyl radicals, i.e. methyl, ethyl, propyl, etc., or ##STR2## wherein R.sub.5 is selected from the group consisting of hydrocarbyl radicals, e.g. alkyl and aromatic residues; n is 2 or 3; and R.sub.1 is selected from the group consisting of organic radicals having fused aromatic rings, that is, radicals comprising at least two rings that share a pair of carbon atoms or share a carbon and nitrogen atom are useful for inducing a dopaminergic response and reducing the intraocular pressure in a mammal.
    Type: Grant
    Filed: September 10, 1991
    Date of Patent: January 5, 1993
    Assignee: Whitby Research, Inc.
    Inventor: Alan S. Horn
  • Patent number: 5175342
    Abstract: The present invention relates to esters of 3-demethylthiocolchicine and N-acyl analogs thereof having the following formula: ##STR1## wherein R is O-CO-alkyl, O-CO-CH.sub.2 Oalkyl, O-CO-Phenyl, O-COOalkyl; the alkyl group having from 1 to 4 carbon atoms and the Ac group representing acetyl and its higher homologs, benzoyl, alkoxyacetyl, or haloacetyl.The invention further relates to processes for preparing these ester compounds, pharmaceutical compositions thereof and methods for treating diseases such as gout, Mediterranean fever and liver disorders.
    Type: Grant
    Filed: April 18, 1991
    Date of Patent: December 29, 1992
    Assignee: The United States of America as represented by the Department of Health and Human Services
    Inventor: Arnold Brossi
  • Patent number: 5167863
    Abstract: There are disclosed an optically active compound represented by the general formula: ##STR1## wherein n, R.sub.1, R.sub.2, R.sub.3, R.sub.4, Q.sub.1, Q.sub.2, Q.sub.3, and M are defined as in the detailed explanation, and *-marked carbon atoms are each an asymmetric carbon atom; a liquid crystal composition comprising at least one optically active compound of said general formula and a liquid crystal optical modulator using the composition thereof.
    Type: Grant
    Filed: July 16, 1990
    Date of Patent: December 1, 1992
    Assignees: Hitachi, Ltd., Takeda Chemical Industries, Ltd.
    Inventors: Teruo Kitamura, Katsumi Kondo, Akio Mukoh, Koichi Matsumura, Mitsuru Kawada, Yoshihiro Sugihara
  • Patent number: 5151414
    Abstract: Compounds of formula ##STR1## (wherein R, R.sub.1, R.sub.2, R.sub.3, n, m and p have the meanings reported in the specification), their preparation and the compositions for pharmaceutical use containing them as active ingredient are described.The compounds of formula I have dopaminergic vasodilator activity and they may be used in pharmaceutical field.
    Type: Grant
    Filed: July 31, 1991
    Date of Patent: September 29, 1992
    Assignee: SIMES Societa Italiana Medicinali e Sintetici S.p.A.
    Inventors: Cesare Casagrande, Gabriele Norcini, Francesco Santangelo, Claudio Semeraro
  • Patent number: 5137653
    Abstract: This invention provides a novel alkanoyl ester compound represented by general formula (I): ##STR1## (wherein A is of --, --O--, ##STR2## B is ##STR3## l and m are 1 or 2 provided that both are not simultaneously 2, k and n are an integer of 1 or more, respectively, provided that k>n, and R is an alkyl group), a liquid crystal composition containing this compound, a novel alkanoylphenyl compound or a novel alkanoylbiphenyl compound as an intermediate for the production of the above compound, and a method of producing the same. These novel alkanoyl ester compounds are excellent in the stability against light and the like and can take a liquid crystal state at a wide temperature range. Particularly, these compounds form liquid crystals of ferroelectricity having a large spontaneous polarization and a fast response rate by introducing an optically active group into the compound, so that they develop a very excellent effect as a starting material for optoelectronics and its related elements.
    Type: Grant
    Filed: October 18, 1991
    Date of Patent: August 11, 1992
    Assignee: Nippon Mining Co., Ltd.
    Inventors: Toshihiro Hirai, Atsushi Yoshizawa, Isa Nishiyama, Mitsuo Fukumasa, Nobuyuki Shiratori, Akihisa Yokoyama
  • Patent number: 5133896
    Abstract: Novel cyanohydrin derivatives of general formula (I) wherein R.sup.1 is hydrogen, alkyl, alkoxy, perfluoroalkyl or perfluoroalkoxy, R.sup.2 is alkyl, r is 1 to 10, n and m are 0 or 1, provided if both n and m are 0 then X is (II) or (III), where (F) indicates one or more optional fluorines, p is 0 or 1, Z is a single bond if p is 0 and COO if p is 1; and if one or both of n or m are 1 then X is (IV), where each ring A, B and C is phenyl, fluoro- or chloro-phenyl, cyclohexyl, pyrimidyl, pyridyl, or dioxanyl, A, B and C are single bonds or linking groups, and (a+b+c) is 2 or 3. Liquid crystal materials containing these compounds are also described.
    Type: Grant
    Filed: July 11, 1990
    Date of Patent: July 28, 1992
    Assignee: The Secretary of State for Defence in Her Britannic Majesty's Government of the United Kingdom of Great Britain and Northern Ireland
    Inventors: David Coates, Simon Greenfield, Ian C. Sage
  • Patent number: RE34726
    Abstract: The subject application discloses a chiral nonracemic composition of the general formula:R.sub.1 --Ar--O--CH.sub.2 --C*HX--C*HY--CH.sub.2 --O--R.sub.2wherein R.sub.1 is an achiral tail of two to sixteen carbons; Ar is an achiral FLC core of at least two rings; * denotes a chiral carbon; X and Y are halogens; and R.sub.2 is one to ten carbon atoms. The --O--CH.sub.2 --C*HX--C*HY--CH.sub.2 --O-- segment comprises the chiral proximal segment of the chiral tail; the proximal segment is selected from the enantiomers 2R,3R-dihalo and 2S,3S-dihalo. R.sub.2 is the distal segment of the chiral tail.
    Type: Grant
    Filed: April 29, 1993
    Date of Patent: September 13, 1994
    Assignee: Displaytech, Inc.
    Inventors: Michael Wand, William N. Thurmes, David Walba